A turtle named Knuckles needs help with some shell issues.

A pregnant dog named Bella needs an emergency C-section.

At a home for rescued baby chimps in Liberia, Jim and Jenny Desmond teach the orphans the skills they would have learned from their mothers in the wild; a new orphan named Miracle is rescued from her life on a chain.

An operation for a critical koala and rainbow lorikeets create chaos.

Rescued orphan Josh needs his broken wrist examined by the school vets, while Beni has a trip to the dentist to treat his bad breath.

A turtle named Knuckles needs help with some shell issues.

A pregnant dog named Bella needs an emergency C-section.

At a home for rescued baby chimps in Liberia, Jim and Jenny Desmond teach the orphans the skills they would have learned from their mothers in the wild; a new orphan named Miracle is rescued from her life on a chain.

An operation for a critical koala and rainbow lorikeets create chaos.

Plankton are the basis of the world's largest food web.

A sudden collapse of the crater floor and a massive eruption drains Hawaii's Kilauea volcano of lava, making it possible to explore.

Typical animal behaviours are thrown off due to the mild winter; Zak tends to an injured bald eagle.

Counting down to the annual deer release, which could get shut down if a government inspection doesn't go according to plan; the staff scramble to help a hawk with a broken beak and vaccinate the raccoon unit against a potentially deadly virus.

Plankton are the basis of the world's largest food web.

A sudden collapse of the crater floor and a massive eruption drains Hawaii's Kilauea volcano of lava, making it possible to explore.

Typical animal behaviours are thrown off due to the mild winter; Zak tends to an injured bald eagle.

The babysitters try to get Beni's diet under control; Malika shows off her passion for fashion; Darryl and Syahrini get steamy in the treetops; Cinta makes a watery discovery; two new babies arrive, one of whom is emaciated.

Roaming across America with a road-tripping chicken and meeting a mouse family living in an English garden; beating arachnophobia with a spider's help; trekking with the guardian of Earth's last two northern white rhinos.

Cockatoos and platypuses inspire new careers; a shared trauma bonds a human and an elephant for life; George the turkey vulture gets playful; a farewell to human-raised kangaroos.

Exploring the softer side of Tasmanian devils; meeting a pioneering sea turtle and enjoying family dinner with Buttons, the deer; playing football with a bull.

Flapping around with Banksi the fruit bat and his human surrogate mom; eyeing a mischievous emu; celebrating a pig's rescue-versary; touring manatee heaven; learning to speak baboon with Dingani.

Visiting Penny the pigeon and her rescuer; getting a buzz from a refugee who finds comfort in beekeeping; diving with a shark dancer.

A turtle named Knuckles needs help with some shell issues.

A pregnant dog named Bella needs an emergency C-section.

At a home for rescued baby chimps in Liberia, Jim and Jenny Desmond teach the orphans the skills they would have learned from their mothers in the wild; a new orphan named Miracle is rescued from her life on a chain.

An operation for a critical koala and rainbow lorikeets create chaos.

Venture to the pristine wilderness of the Snares Islands, a remote animal sanctuary protected from the turbulent sea; hop along with a colony of Snares crested penguins, soar with giant petrels and sooty shearwaters, and roar with giant sea lions.

Dash across southeast Queensland as breeding and snake-catching season ramp up; Adele and Mick go up against an eastern brown, the second-deadliest snake in the world; Stu and Liv tangle with a carpet python.

Launch into spring's snake surge with Liv and Stu, who intercept two male brown snakes duelling for mating rights at a construction site; stand back as Dan and Jess rescue chickens from a python and Mick and Adele hunt for a rogue green tree snake.

Chase a rogue lizard and a python, and free an eastern brown caught in a fence.

Confronting venom and brutal heat as snakes seek shelter in all the wrong places.

Venture to the pristine wilderness of the Snares Islands, a remote animal sanctuary protected from the turbulent sea; hop along with a colony of Snares crested penguins, soar with giant petrels and sooty shearwaters, and roar with giant sea lions.

Dash across southeast Queensland as breeding and snake-catching season ramp up; Adele and Mick go up against an eastern brown, the second-deadliest snake in the world; Stu and Liv tangle with a carpet python.

Launch into spring's snake surge with Liv and Stu, who intercept two male brown snakes duelling for mating rights at a construction site; stand back as Dan and Jess rescue chickens from a python and Mick and Adele hunt for a rogue green tree snake.

Chase a rogue lizard and a python, and free an eastern brown caught in a fence.

Confronting venom and brutal heat as snakes seek shelter in all the wrong places.

The babysitters try to get Beni's diet under control; Malika shows off her passion for fashion; Darryl and Syahrini get steamy in the treetops; Cinta makes a watery discovery; two new babies arrive, one of whom is emaciated.

Venture to the pristine wilderness of the Snares Islands, a remote animal sanctuary protected from the turbulent sea; hop along with a colony of Snares crested penguins, soar with giant petrels and sooty shearwaters, and roar with giant sea lions.

Dash across southeast Queensland as breeding and snake-catching season ramp up; Adele and Mick go up against an eastern brown, the second-deadliest snake in the world; Stu and Liv tangle with a carpet python.

Launch into spring's snake surge with Liv and Stu, who intercept two male brown snakes duelling for mating rights at a construction site; stand back as Dan and Jess rescue chickens from a python and Mick and Adele hunt for a rogue green tree snake.

Chase a rogue lizard and a python, and free an eastern brown caught in a fence.

Confronting venom and brutal heat as snakes seek shelter in all the wrong places.

The great white shark is one of the most iconic ocean creatures.

Students from the Atlantic Veterinary College visit Hope's animal rehab facility for some hands-on experience in treating a harbor seal.

A rescue ends in tragedy; a new team of volunteers arrives at the farm just as a snowy owl is brought in.

Feel the excitement as the team releases a pair of rehabbed gray seals just in time to welcome another orphaned duo. Cope with an early spring baby boom and watch Hope call in the big guns when a Canada goose shows up covered in porcupine quills.

The great white shark is one of the most iconic ocean creatures.

Students from the Atlantic Veterinary College visit Hope's animal rehab facility for some hands-on experience in treating a harbor seal.

A rescue ends in tragedy; a new team of volunteers arrives at the farm just as a snowy owl is brought in.

Difficult quarantine student Taymur has a breakthrough and starts to embrace his jungle school lesson; serial truant Luthy skips class again and gives the staff a run for their money.

Dive to the dark depths of the sea to uncover the ocean's mysterious inhabitants; journey across vast stretches of open water with humpback whales, then wander down to the ocean floor to witness breathtaking bioluminescence.

Coasts are gateways from land to sea, offering opportunities to many creatures.

Uncover the profound significance and uncertain future of our rivers.

Our planet's freshwater lakes are cradles of life.

Swamps, with the duality of life and death, nurture young and trap lost souls.

Venture to the pristine wilderness of the Snares Islands, a remote animal sanctuary protected from the turbulent sea; hop along with a colony of Snares crested penguins, soar with giant petrels and sooty shearwaters, and roar with giant sea lions.

Dash across southeast Queensland as breeding and snake-catching season ramp up; Adele and Mick go up against an eastern brown, the second-deadliest snake in the world; Stu and Liv tangle with a carpet python.

Launch into spring's snake surge with Liv and Stu, who intercept two male brown snakes duelling for mating rights at a construction site; stand back as Dan and Jess rescue chickens from a python and Mick and Adele hunt for a rogue green tree snake.

Chase a rogue lizard and a python, and free an eastern brown caught in a fence.

Confronting venom and brutal heat as snakes seek shelter in all the wrong places.

The filmmakers explore the uncommon friendships between people and their unusual wild pets and their fascinating backstories.

Join anthropologist Jill Pruetz and guide Dondo "Johnny" Kanté and watch evolution happen in real time; meet the elusive chimps of Fongoli, Senegal, who use tools, interact with fire, and adapt to the human world as it collides with their own.

Patrick Aryee follows grizzly bears that are taking a risk by leaving their winter dens early; hungry wolves are struggling to bring down their elk prey in the unusually shallow snow.

The filmmakers explore the uncommon friendships between people and their unusual wild pets and their fascinating backstories.

Join anthropologist Jill Pruetz and guide Dondo "Johnny" Kanté and watch evolution happen in real time; meet the elusive chimps of Fongoli, Senegal, who use tools, interact with fire, and adapt to the human world as it collides with their own.

Patrick Aryee follows grizzly bears that are taking a risk by leaving their winter dens early; hungry wolves are struggling to bring down their elk prey in the unusually shallow snow.

Difficult quarantine student Taymur has a breakthrough and starts to embrace his jungle school lesson; serial truant Luthy skips class again and gives the staff a run for their money.

The filmmakers explore the uncommon friendships between people and their unusual wild pets and their fascinating backstories.

Join anthropologist Jill Pruetz and guide Dondo "Johnny" Kanté and watch evolution happen in real time; meet the elusive chimps of Fongoli, Senegal, who use tools, interact with fire, and adapt to the human world as it collides with their own.

Patrick Aryee follows grizzly bears that are taking a risk by leaving their winter dens early; hungry wolves are struggling to bring down their elk prey in the unusually shallow snow.

Sharks may be much more intelligent than previously thought.

A fulmar arrives for treatment, joining a whole flock of birds.

Five orphaned foxes arrive; a beaver turns up in an unexpected place.

Get to know seven wildcats, including one who was caught in a trap, who can't wait to be released into their new home; rush to quarantine a pair of fox cubs who've arrived at the rehab clinic with a suspected case of avian flu.

Sharks may be much more intelligent than previously thought.

A fulmar arrives for treatment, joining a whole flock of birds.

Five orphaned foxes arrive; a beaver turns up in an unexpected place.

Six graduates from jungle school are finally set to be freed into the wild from the pre-release islands after an arduous journey by road and river into the heart of Borneo.

Australia's Great Barrier Reef is one of the natural wonders of the world and the largest living structure on the planet; Monty Halls explores the complexity of the reef itself and the wildlife that lives on it.

Only seven percent of the Great Barrier Reef is coral, and the remainder is a variety of interconnected habitats including the world's oldest jungle, hundreds of islands, mangrove swamps, deep water gardens, sand flats and seagrass.

Creatures travel thousands of miles to visit the reef and Pacific weather patterns are likely to further shape the terrain and wildlife.

Getting acquainted with an array of ocean oddballs and learning how billions of years' worth of changes have shaped their looks and skills; meeting blind worms who fish, walking sharks, tree-climbing crabs and much more.

Feeling the love in the strange-but-heartwarming partnerships between some of Earth's oddest creatures; diving deep to see strange animals, from snapping shrimp to wolf eels, offer a hand to their fellow ocean-going weirdos to ensure mutual survival.

The filmmakers explore the uncommon friendships between people and their unusual wild pets and their fascinating backstories.

Join anthropologist Jill Pruetz and guide Dondo "Johnny" Kanté and watch evolution happen in real time; meet the elusive chimps of Fongoli, Senegal, who use tools, interact with fire, and adapt to the human world as it collides with their own.

Patrick Aryee follows grizzly bears that are taking a risk by leaving their winter dens early; hungry wolves are struggling to bring down their elk prey in the unusually shallow snow.

Discover how weirdness is baked into some animals' DNA from birth; check out the bowerbird's mate-attracting dance moves, the Christmas Island crab's traffic-dodging prowess and the sockeye salmon's uphill swimming skills!

Descend into the tide pool, where a hermit crab house hunts; a baby catshark runs into strange neighbors; an octopus terrorizes prey; watch seagulls and other creatures hunt on the surface as the heat rises and oxygen depletes in the pool.

The sun sets and predators prowl around the pool before the tide finally rolls in; persevere as night falls with a kleptomaniacal slug and an acrobatic scallop; a pair of sneaky crabs take a dangerous shot at romance.

Discover how weirdness is baked into some animals' DNA from birth; check out the bowerbird's mate-attracting dance moves, the Christmas Island crab's traffic-dodging prowess and the sockeye salmon's uphill swimming skills!

Descend into the tide pool, where a hermit crab house hunts; a baby catshark runs into strange neighbors; an octopus terrorizes prey; watch seagulls and other creatures hunt on the surface as the heat rises and oxygen depletes in the pool.

The sun sets and predators prowl around the pool before the tide finally rolls in; persevere as night falls with a kleptomaniacal slug and an acrobatic scallop; a pair of sneaky crabs take a dangerous shot at romance.

Six graduates from jungle school are finally set to be freed into the wild from the pre-release islands after an arduous journey by road and river into the heart of Borneo.

Discover how weirdness is baked into some animals' DNA from birth; check out the bowerbird's mate-attracting dance moves, the Christmas Island crab's traffic-dodging prowess and the sockeye salmon's uphill swimming skills!

Descend into the tide pool, where a hermit crab house hunts; a baby catshark runs into strange neighbors; an octopus terrorizes prey; watch seagulls and other creatures hunt on the surface as the heat rises and oxygen depletes in the pool.

The sun sets and predators prowl around the pool before the tide finally rolls in; persevere as night falls with a kleptomaniacal slug and an acrobatic scallop; a pair of sneaky crabs take a dangerous shot at romance.

The Hudson Bay lowlands are critical to life in North America.

The baby boom has officially begun, but Hope's barn isn't complete, so the team must come up with a new plan to accommodate all the new arrivals.

Two harbour seals arrive in the middle of the night; Hope's vulture shows sign of progress; an old friend joins the team.

Chase down a weasel and her tiny kittens who have gone AWOL at the rehab. Hold your breath as Dr. Mikaela performs a rare medical procedure on a raccoon's injured tail, then meet Hope's new otter friend and the tiniest beaver the team has ever seen.

The Hudson Bay lowlands are critical to life in North America.

The baby boom has officially begun, but Hope's barn isn't complete, so the team must come up with a new plan to accommodate all the new arrivals.

Two harbour seals arrive in the middle of the night; Hope's vulture shows sign of progress; an old friend joins the team.

Embark on a journey as Lizzie traverses air, land and sea to encounter Alaskan wildlife and explore some of the world's most remote corners; join scientists eavesdropping on underwater Arctic residents.

The Okavango Delta is home to a wide variety of African wildlife.

Penguins live on a tiny, urban cape in South Africa.

During the dry season, the quest for water governs the lives of the animals in South Africa.

The Blue Lagoon is an extraordinary cove on South Africa's west coast.

The vast flood plains of the Chobe river.

Hippos, crocodiles, and other creatures call the waterways of Africa home.

The creatures of the wetlands.

A front-row seat to the planet's biggest biomass migration, the annual 1,000-mile sardine run along South Africa's east coast.

Cutting-edge infra-red and thermal cameras go inside one of the U.K.'s biggest greater horseshoe bat roosts to see how baby bats learn to fly, navigate and hunt.

Each species evolves unique tools to outpace rivals in the eat-or-be-eaten game, taking to the skies is the ultimate advantage.

The Onçafari team gets to know Aroeira, their newly collared female and takes a peek at Aurora's cub, Apolo; Badalo moves deeper into the flooded forest, where he puts Lizzie's game-changing research in jeopardy.

Cutting-edge infra-red and thermal cameras go inside one of the U.K.'s biggest greater horseshoe bat roosts to see how baby bats learn to fly, navigate and hunt.

Each species evolves unique tools to outpace rivals in the eat-or-be-eaten game, taking to the skies is the ultimate advantage.

The Onçafari team gets to know Aroeira, their newly collared female and takes a peek at Aurora's cub, Apolo; Badalo moves deeper into the flooded forest, where he puts Lizzie's game-changing research in jeopardy.

Big changes are afoot for some of the pupils at Orangutan Jungle School, where orphaned orangutans learn the forest skills they need to survive in the wild; four new arrivals join the nursery classes and some familiar faces move up a grade.

Cutting-edge infra-red and thermal cameras go inside one of the U.K.'s biggest greater horseshoe bat roosts to see how baby bats learn to fly, navigate and hunt.

Each species evolves unique tools to outpace rivals in the eat-or-be-eaten game, taking to the skies is the ultimate advantage.

The Onçafari team gets to know Aroeira, their newly collared female and takes a peek at Aurora's cub, Apolo; Badalo moves deeper into the flooded forest, where he puts Lizzie's game-changing research in jeopardy.

The Yukon is one of earths last true wildernesses.

Four squirrels arrive with their tails tangled together and Zak's bald eagle is released.

Hope Swinimer recalls the most heartfelt and heart-wrenching moments from eight years and 100 episodes of "Hope for Wildlife.".

Scramble as the staff tries to find a place for each of the orphaned skunks, raccoons, and groundhogs that are streaming through the rehab's doors; then deal with the deadly side of spring as the team tries to save a hare wounded by a weed whacker.

The Yukon is one of earths last true wildernesses.

Four squirrels arrive with their tails tangled together and Zak's bald eagle is released.

Hope Swinimer recalls the most heartfelt and heart-wrenching moments from eight years and 100 episodes of "Hope for Wildlife.".

A southern African mangrove forest experiences the changes between high and low tide.

Trekking through the Canadian rainforest, looking up at dizzying redwood trees and exploring giant kelp forests with Lizzie as she experiences the wild West Coast of North America; crossing paths with wolves and bears while salmon travel upstream.

Dipping into North America's southern coastal waters, where squid mate, sea turtles nest and mobula rays take flight for the sake of romance; flying a drone with Lizzie as she swoops in for a breath sample from a blue whale.

Lizzie swims through coral reefs, digs for ancient fossils and treks through jungles on tropical shores; prowl with jaguars that stalk a Costa Rican beach and meet some big sharks.

Tag along with Lizzie on her most dangerous Atlantic adventure yet; free diving with bull sharks; explore otherworldly Gulf Coast swamps filled with hungry alligators, crafty snapping turtles and tiny but mighty beach mice who strengthen sand dunes.

Lizzie heads north to tag sharks and witness first-hand the slow disappearance of sea ice; she does time in bear jail with polar bears who are caught raiding a town for food after their hunting grounds diminish.

Exploring the shores of the Northern Territory and the abundant waters of the Great Barrier Reef; Lizzie faces flooded roads, hungry saltwater crocs, and killer jellyfish as she investigates why many deadly creatures make remote areas their home.

Saying goodbye to the tropics and dipping into the cool southern-coast waters; witnessing grey nurse sharks, shape-shifting cuttlefish and blue whales; playing with penguins and sea lions.

Completing the trip's final lap in the untamed lands where Australia's interior desert meets the Indian Ocean; confronting the challenges of survival in the region; Lizzie dives with tiger sharks, manta rays and nomadic turtles.

During spring on the Gomoti River, cheetah mother Phefo and lion mother Tshaba teach their cubs' survival skills; they protect their young from big male cats; lion king Molelo fights battles; leopard Senatia works to secure his legacy.

Tracking Molelo's pride, who are exhausted when the winter floods arrive, and witnessing an encounter that gives leopard mum Sephiri a decision to make.

During spring on the Gomoti River, cheetah mother Phefo and lion mother Tshaba teach their cubs' survival skills; they protect their young from big male cats; lion king Molelo fights battles; leopard Senatia works to secure his legacy.

Tracking Molelo's pride, who are exhausted when the winter floods arrive, and witnessing an encounter that gives leopard mum Sephiri a decision to make.

Recent nursery graduates Jelapat, Talaken, Bawan and Rona join their classmates at their new classroom; Dilla unexpectedly gives birth at midnight, but the delivery does not go smoothly.

During spring on the Gomoti River, cheetah mother Phefo and lion mother Tshaba teach their cubs' survival skills; they protect their young from big male cats; lion king Molelo fights battles; leopard Senatia works to secure his legacy.

Tracking Molelo's pride, who are exhausted when the winter floods arrive, and witnessing an encounter that gives leopard mum Sephiri a decision to make.

It's November at Cape Tatnam, and though winter is coming to the lower Western shore of Hudson Bay, the ice, which should be forming by now, is nowhere to be seen.

Hope is caring for the tiniest porcupine she's ever seen as the team tries to match orphans with surrogates; raccoon babies are paired with a family; Zak introduces goslings to a tame goose.

There's a moment of panic at Hope for Wildlife when Maxwell, the three-legged skink goes missing; luckily, they find him unharmed, just in time for Zak to release the vulture that has been in rehab for more than six months.

Observe a pair of white, piebald fawns that pose a big rehab challenge; check out an albino skunk displaced by flash floods, see Dr. Mikaela race to save a parasite-infected chipmunk, and monitor a groundhog fighting for its life after a dog attack.

It's November at Cape Tatnam, and though winter is coming to the lower Western shore of Hudson Bay, the ice, which should be forming by now, is nowhere to be seen.

Hope is caring for the tiniest porcupine she's ever seen as the team tries to match orphans with surrogates; raccoon babies are paired with a family; Zak introduces goslings to a tame goose.

There's a moment of panic at Hope for Wildlife when Maxwell, the three-legged skink goes missing; luckily, they find him unharmed, just in time for Zak to release the vulture that has been in rehab for more than six months.

Dive to the dark depths of the sea to uncover the ocean's mysterious inhabitants; journey across vast stretches of open water with humpback whales, then wander down to the ocean floor to witness breathtaking bioluminescence.

Coasts are gateways from land to sea, offering opportunities to many creatures.

Uncover the profound significance and uncertain future of our rivers.

Our planet's freshwater lakes are cradles of life.

Swamps, with the duality of life and death, nurture young and trap lost souls.

Frozen water takes on a sharper persona, influencing everything in its path.

The Galápagos, world-famous for inspiring the groundbreaking theories of Charles Darwin, is, like the rest of the world, threatened by climate change.

The story of the passionate researchers who are committed to protect and conserve this special, but fragile, ecosystem.

The islands' natural rhythms and challenges of new life unfold in this wild outpost; turtles return to nesting sites, rival iguanas compete for mates and albatrosses perform courtship dances.

The camelthorn tree provides life to creatures that dwell in Africa's Kalahari.

The marula tree is considered a tree of life in Africa's Manyeleti game reserve.

While some species have passed into extinction, others have recovered and some have even flourished.

The camelthorn tree provides life to creatures that dwell in Africa's Kalahari.

The marula tree is considered a tree of life in Africa's Manyeleti game reserve.

While some species have passed into extinction, others have recovered and some have even flourished.

Beni and Lala are confined to the clinic following an accident; bullied Kesi causes concern for the team; Clara and her daughter, Clarita, are chosen for release back into the wild.

The camelthorn tree provides life to creatures that dwell in Africa's Kalahari.

The marula tree is considered a tree of life in Africa's Manyeleti game reserve.

While some species have passed into extinction, others have recovered and some have even flourished.

An illustration of how the Arctic springs to life after nearly seven months in total darkness.

Animals are being rescued left and right, including a harbor seal, a barred owl, and even a crow; Hope knows the most majestic animals are yet to arrive as the team anticipates the first fawn of the season.

Hope's first fawn of the season is doing better than expected, while a goose receives care at the Burnside Veterinary Hospital following a potentially fatal encounter; more than 60 raccoons are now in rehab.

Deal with heartbreaking cases, including a bald eagle that has mysteriously lost its ability to fly. Watch over a chilled fawn that won't eat, a hummingbird with dangerously sticky wings, and a snapping turtle that got caught in a city reservoir.

An illustration of how the Arctic springs to life after nearly seven months in total darkness.

Animals are being rescued left and right, including a harbor seal, a barred owl, and even a crow; Hope knows the most majestic animals are yet to arrive as the team anticipates the first fawn of the season.

Hope's first fawn of the season is doing better than expected, while a goose receives care at the Burnside Veterinary Hospital following a potentially fatal encounter; more than 60 raccoons are now in rehab.

Aliwal and Sodwana, the Dune Kingdoms.

Cape fur seals breed on Africa's west coast.

Mafia Island, located just off the Tanzanian coastline, is home to diverse marine and terrestrial ecosystems with miles of white beach and clear waters.

The species that call Lake Malawi home have evolved.

Warm waters surround the islands off the coast of Mozambique.

Researchers study shark behavior and fight for the protection of these predators.

Researchers risk everything to unlock secret shark behaviors, challenge myths about sharks, and fight for the protection of these predators.

In some of the most-remote regions on the planet, researchers dive deep and brave danger to unlock secret shark behaviors; they fight for the protection of these supreme predators before it's too late.

Sharks often get portrayed as mindless predators prone to attacking humans, but there is more to these graceful apex predators than meets the eye; the Bimini Sharklab undertakes novel research into shark intelligence.

A defenestrated kitty needs a new home, a cat named Bella has mouth issues which may or may not be cancer, and Dr. Savannah takes a trip to the Siksika First Nation to run a spay/neuter clinic to help control the pet population.

A cat named Louis requires major leg surgery, a Kunekune pig named Crumbfoot needs emergency X-rays, and Savannah heads out to conduct a wild horse study, looking at how horses treat their own parasites through a process known as Zoopharmacognosy.

At Liberia's only home for rescued chimpanzees, there are more new arrivals; Jimmy and Jenny Desmond and their team now have 28 chimps to look after, including an 8-week-old baby called Gaia.

A trio of Elephants in Zambia are rescued.

A defenestrated kitty needs a new home, a cat named Bella has mouth issues which may or may not be cancer, and Dr. Savannah takes a trip to the Siksika First Nation to run a spay/neuter clinic to help control the pet population.

A cat named Louis requires major leg surgery, a Kunekune pig named Crumbfoot needs emergency X-rays, and Savannah heads out to conduct a wild horse study, looking at how horses treat their own parasites through a process known as Zoopharmacognosy.

At Liberia's only home for rescued chimpanzees, there are more new arrivals; Jimmy and Jenny Desmond and their team now have 28 chimps to look after, including an 8-week-old baby called Gaia.

A trio of Elephants in Zambia are rescued.

Beni and Lala are going stir-crazy in the sick bay, but they must recover before returning to the rough and tumble of class; at forest school, a termite-foraging lesson inspires class clown Valentino to make a finger-licking discovery.

A defenestrated kitty needs a new home, a cat named Bella has mouth issues which may or may not be cancer, and Dr. Savannah takes a trip to the Siksika First Nation to run a spay/neuter clinic to help control the pet population.

A cat named Louis requires major leg surgery, a Kunekune pig named Crumbfoot needs emergency X-rays, and Savannah heads out to conduct a wild horse study, looking at how horses treat their own parasites through a process known as Zoopharmacognosy.

At Liberia's only home for rescued chimpanzees, there are more new arrivals; Jimmy and Jenny Desmond and their team now have 28 chimps to look after, including an 8-week-old baby called Gaia.

A trio of Elephants in Zambia are rescued.

Devon Island in Nunavut is the largest uninhabited island in the world; the icy landscape is so barren that NASA uses it to simulate conditions on Mars.

The first skunk of the year arrives while Dr. Sherri operates on a pigeon's toe, and saves it from infection; the first songbirds of the year are released.

The clinic opens to visitors; starlings are moved; raccoons are released; Dr. Barry tends to an injured beaver.

Cope with injuries caused by human neglect and malice, including a gull that ate a metal shard and animals shot by pellet guns. Celebrate the recovery of two foxes with avian flu and witness the joyous release of 12 robins and a snapping turtle.

Devon Island in Nunavut is the largest uninhabited island in the world; the icy landscape is so barren that NASA uses it to simulate conditions on Mars.

The first skunk of the year arrives while Dr. Sherri operates on a pigeon's toe, and saves it from infection; the first songbirds of the year are released.

The clinic opens to visitors; starlings are moved; raccoons are released; Dr. Barry tends to an injured beaver.

Getting acquainted with an array of ocean oddballs and learning how billions of years' worth of changes have shaped their looks and skills; meeting blind worms who fish, walking sharks, tree-climbing crabs and much more.

Feeling the love in the strange-but-heartwarming partnerships between some of Earth's oddest creatures; diving deep to see strange animals, from snapping shrimp to wolf eels, offer a hand to their fellow ocean-going weirdos to ensure mutual survival.

Exploring the bizarre mating rituals of the ocean's most peculiar creatures; learning how bloody battles for mates, gender bending, and super-size litters of babies might secure a next generation for these animals.

Florida has the most tidal shoreline in the contiguous United States.

Nova Scotia beaches prove a beach needs a balance between opposing forces to thrive.

The mythology of Ixchel, a protective mother figure.

Hawaiian beaches are created and altered by active volcanoes.

Fraser Island is the largest sand island on Earth and a UNESCO World Heritage Site.

Human influence and effect on the beaches of California.

Setting sail for New Zealand's Otago Peninsula, a breeding refuge for endangered seabirds and marine mammals; watching as sea lions, albatrosses, red-billed gulls, white-fronted terns and fairy prions find mates, then nurture the next generation.

Untangle, extract, and outwit snakes that have been slithering into the suburbs.

Battle browns, red bellies, and pythons invading Aussie farms.

Returning to South Luangwa to see the new pups born to the mighty Manzi and the tiny-but-fearless Kakumbi packs; yearling Snowy faces a hungry hyena before a lion pride scatters Manzi mum Weka's pups and leaves her frantically searching for them.

There's a lion-hyena showdown with Julz as he hunts for the elusive Manzi pack, who are missing four of their precious pups; Henry from the Zambian Carnivore Programme is on a house call to the Kakumbi den, where another pup has gone AWOL.

Setting sail for New Zealand's Otago Peninsula, a breeding refuge for endangered seabirds and marine mammals; watching as sea lions, albatrosses, red-billed gulls, white-fronted terns and fairy prions find mates, then nurture the next generation.

Untangle, extract, and outwit snakes that have been slithering into the suburbs.

Battle browns, red bellies, and pythons invading Aussie farms.

Returning to South Luangwa to see the new pups born to the mighty Manzi and the tiny-but-fearless Kakumbi packs; yearling Snowy faces a hungry hyena before a lion pride scatters Manzi mum Weka's pups and leaves her frantically searching for them.

There's a lion-hyena showdown with Julz as he hunts for the elusive Manzi pack, who are missing four of their precious pups; Henry from the Zambian Carnivore Programme is on a house call to the Kakumbi den, where another pup has gone AWOL.

Three-year-old Wine ditches lessons to make a remarkable new friend, as she bonds with a young macaque; two refugees from a Thai circus, young mother Sampit and her son Sawadee, get a second chance at living semi-wild on a pre-release island.

Setting sail for New Zealand's Otago Peninsula, a breeding refuge for endangered seabirds and marine mammals; watching as sea lions, albatrosses, red-billed gulls, white-fronted terns and fairy prions find mates, then nurture the next generation.

Untangle, extract, and outwit snakes that have been slithering into the suburbs.

Battle browns, red bellies, and pythons invading Aussie farms.

Returning to South Luangwa to see the new pups born to the mighty Manzi and the tiny-but-fearless Kakumbi packs; yearling Snowy faces a hungry hyena before a lion pride scatters Manzi mum Weka's pups and leaves her frantically searching for them.

There's a lion-hyena showdown with Julz as he hunts for the elusive Manzi pack, who are missing four of their precious pups; Henry from the Zambian Carnivore Programme is on a house call to the Kakumbi den, where another pup has gone AWOL.

Inside the Mackenzie Delta, a transition zone of the boreal forest to the frozen tundra.

A fox undergoes surgery; the marine mammals begin to move outside; the deer enclosure fills up with orphaned fawns.

The team tries to help a stranded sunfish.

Hope releases the last of her deer herd as spring approaches, but one fawn doesn't want to leave.

Inside the Mackenzie Delta, a transition zone of the boreal forest to the frozen tundra.

A fox undergoes surgery; the marine mammals begin to move outside; the deer enclosure fills up with orphaned fawns.

The team tries to help a stranded sunfish.

Discover a city lying beneath the waves, where commuters flood the coral reef's main highways.

Feel the heat of summer's arrival as supersize sea snails try to fend off an invading gang of coral-hungry starfish; accompany reef sharks as they prowl for a midnight meal and marvel at the slippery disguise a parrotfish uses to survive the night.

Adapt or perish in the coral streets as higher-than-normal temperatures make autumn cooling more difficult; shack up with a clownfish family and their sea anemone landlord, then see cleaner fish give manta rays a day at the spa.

Get chills as winter descends, slowing down life on the bustling reef; meander with reef sharks and octopuses, visit a coral oasis atop an old shipwreck, and spot a banded snake eel's talent for identity theft when it disguises itself as a predator.

Shipwrecks in the Caribbean become artificial reefs that support marine life.

The waters near the Florida Keys are home to as many as 1,000 shipwrecks.

Cinematic shipwrecks of the Bahamas.

An island off the coast of Honduras stands out as a holiday resort hot spot, and more than just sun and sand brings the tourists in droves; divers consider the island a paradise of shipwrecks scattered from all corners of the island to explore.

Mexico's Yucatán Peninsula houses ships converted to artificial reefs.

The filmmakers explore the uncommon friendships between people and their unusual wild pets and their fascinating backstories.

Wallabies, koolamana lizards and crocodile hatchlings face the wild river's dangers.

As winter turns to spring, temperatures rise and Yellowstone bursts into life; beavers feast on new green shoots, baby bison take their first faltering steps and grizzly cubs emerge from their dens.

The filmmakers explore the uncommon friendships between people and their unusual wild pets and their fascinating backstories.

Wallabies, koolamana lizards and crocodile hatchlings face the wild river's dangers.

As winter turns to spring, temperatures rise and Yellowstone bursts into life; beavers feast on new green shoots, baby bison take their first faltering steps and grizzly cubs emerge from their dens.

After weeks of battling a mysterious head infection, Erik joins the group two students; at forest school, the group three students enjoy a poolside classroom where Valentino proves he's more than just a class clown.

The filmmakers explore the uncommon friendships between people and their unusual wild pets and their fascinating backstories.

Wallabies, koolamana lizards and crocodile hatchlings face the wild river's dangers.

As winter turns to spring, temperatures rise and Yellowstone bursts into life; beavers feast on new green shoots, baby bison take their first faltering steps and grizzly cubs emerge from their dens.

The people of Nunavik prepare for the coming winter.

Hope attempts to reunite a fawn with its mother; an eagle recovers from an infestation.

Hope's three bobcats get released into the wild, and the second baby barred owl arrives.

Hope prepares for her fundraiser but the spring baby boom starts early; youngest owl; American icon.

The people of Nunavik prepare for the coming winter.

Hope attempts to reunite a fawn with its mother; an eagle recovers from an infestation.

Hope's three bobcats get released into the wild, and the second baby barred owl arrives.

Hippos, elephants, lions and buffalo are drawn to the Zambezi's wild waters, which grow from a tiny trickle in Zambia to the thundering Victoria Falls.

The Danube River, which stretches from the Alps to the Black Sea, supports a surprising range of wildlife and is coping with years of human impact. (2 of 3).

The Yukon River boasts one of the longest salmon runs in the world; from musk ox to ice bears, there is a rich variety of life that call this frozen river home.

The Wild Coast of South Africa, stretching 170 miles from East London to the KwaZulu-Natal border, consists of rivers that empty into the sea and indigenous forest.

The coastline of Mozambique attracts some of the world's largest filter feeders. Two of Mozambique's leading marine researchers, Andrea Marshall and Nakia Cullan, set out to find one of the ocean's most secretive animals.

Humpbacks and whale sharks visit the coast of Mozambique.

Australia's Great Barrier Reef is one of the natural wonders of the world and the largest living structure on the planet; Monty Halls explores the complexity of the reef itself and the wildlife that lives on it.

Only seven percent of the Great Barrier Reef is coral, and the remainder is a variety of interconnected habitats including the world's oldest jungle, hundreds of islands, mangrove swamps, deep water gardens, sand flats and seagrass.

Creatures travel thousands of miles to visit the reef and Pacific weather patterns are likely to further shape the terrain and wildlife.