The fate of several graduates awaits the next round of wild releases; runaway Zalipa is found, but her partner in crime, Tulia, is still missing; baby Clarita has a complete meltdown as the vets perform surgery on her mother.

Get to know the Waterfront Pride: males Tom Tom and Caller, 8 lionesses, 10 youths, and Einstein, the grown cub who never left home; Einstein's defiance catches up with him when rivals from the Outsiders Pride make a play that seals his fate.

Heading out with Lizzie and the Oncafari team as they set out on the hunt for a missing, dominant jaguar; monitoring the battle between young individuals who are all coveting power.

Lizzie gets to know Fera, the Queen of the Pantanal, as she teaches her rambunctious cub Simba some essential jaguar skills, including how to climb trees and hunt for dinner.

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

The team prepares for the annual open house; Aislyn spends her last day organizing the second raccoon roundup.

Hope prepares for the annual open house, but approaching rainstorms threaten the event.

A project goes wrong; Hope tries to save chicks stuck in their shells; searching for orphaned foxes.

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

The team prepares for the annual open house; Aislyn spends her last day organizing the second raccoon roundup.

Hope prepares for the annual open house, but approaching rainstorms threaten the event.

The team makes the final attempt to reunite reluctant mother Dilla with her new baby Delilah; Clara and Clarita are on their final journey to freedom when a dangerous flood stops them in their tracks and threatens everyone.

Follow a young tiger in India that has been forced out of its home territory by another male and has to struggle for survival.

Every year, up to 80 polar bears gather on the frozen shores of Barter Island on the Arctic coast of Alaska.

Stage one of the competition kicks off with seven ravenous bears post-hibernation; tiny Stomper vies for power and Blondie's love, grizzled vet Bernie brawls with clueless teen Casanova and new mom BoldFace battles wolves.

The Stage 1 winners and some tough new recruits dash to cash on July's salmon feast; BigBoi embarks on a food-finding road trip, QuadMom and RedBack are welcomed to the feast and BoldFace keeps her surviving cub safe.

An icy October storm complicates the race to the finish line; Big Boi bounces after a stumble before tragedy hits QuadMom; fan fave BoldFace hits her stride despite her clingy kid, Raccoon.

Get to know the Waterfront Pride: males Tom Tom and Caller, 8 lionesses, 10 youths, and Einstein, the grown cub who never left home; Einstein's defiance catches up with him when rivals from the Outsiders Pride make a play that seals his fate.

Heading out with Lizzie and the Oncafari team as they set out on the hunt for a missing, dominant jaguar; monitoring the battle between young individuals who are all coveting power.

Lizzie gets to know Fera, the Queen of the Pantanal, as she teaches her rambunctious cub Simba some essential jaguar skills, including how to climb trees and hunt for dinner.

The Isthmus of Panama is a thoroughfare and rest stop for birds, mammals and reptiles, including turkey vultures, leatherback turtles, jaguars, coyotes, shorebirds, songbirds, and many others; scientists track animal movements and explores threats.

Five desert lions come of age in the African Namib.

The wild counterparts of domesticated species.

The Isthmus of Panama is a thoroughfare and rest stop for birds, mammals and reptiles, including turkey vultures, leatherback turtles, jaguars, coyotes, shorebirds, songbirds, and many others; scientists track animal movements and explores threats.

Five desert lions come of age in the African Namib.

The wild counterparts of domesticated species.

The team makes the final attempt to reunite reluctant mother Dilla with her new baby Delilah; Clara and Clarita are on their final journey to freedom when a dangerous flood stops them in their tracks and threatens everyone.

The Isthmus of Panama is a thoroughfare and rest stop for birds, mammals and reptiles, including turkey vultures, leatherback turtles, jaguars, coyotes, shorebirds, songbirds, and many others; scientists track animal movements and explores threats.

Five desert lions come of age in the African Namib.

The wild counterparts of domesticated species.

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.

The crew deals with emergencies in the bone-chilling cold; a herd of white-tailed deer is released.

Animals - and a plant - that use stench to survive.

A moose arrives mysteriously; fawns flood the rehab.

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.

The crew deals with emergencies in the bone-chilling cold; a herd of white-tailed deer is released.

Animals - and a plant - that use stench to survive.

An inside look at the Nyaru Menteng Rescue Center in Borneo to explore how the orangutan school curriculum works, from nursery through graduation.

Elands lock corkscrew horns; storks rattle sabre-shaped beaks; rhinos scare the competition with big horns; striped marlins spear unsuspecting prey.

Tasmanian devils get into food fights with rivals; how dung beetles roll over the competition; wild boars' fierce mating strategies; hyenas' bone-crushing teeth demolish any meal.

The blonde manes of golden snub-nose monkeys; pink flamingo feathers brought on by an all-crustacean diet; the markings of gemsboks and cheetahs.

A gorilla wrestling match, pushy moose antlers, long pelican bills that snap at any enemy within range, and a megashark's stereo sniffer.

Sea lions throw their weight around to win a mate, Cape buffalo deliver knockout punches, Canada geese hit hard with their wings, and lionesses rule the Savanna with an iron paw.

Warthogs' lumpy armor, giant African bullfrogs' jumping and biting skills, wild turkeys' sharp beaks and razorlike spurs, and Nile crocodiles' powerful jaws.

A glacial stroll alongside a Galápagos tortoise; dancing with venomous European adders; a battle between Lacerta lizards; leopard seals' stealth attacks.

Chatty capuchin monkeys; Eurasian river otters' chilling screams; fruit bats' loud complaints; orcas' human-scale speech systems.

The story of two mothers, a crocodile and a hippopotamus, as they face the perils of raising a family in this beautiful, remote location of Katuma.

The Isthmus of Panama is a thoroughfare and rest stop for birds, mammals and reptiles, including turkey vultures, leatherback turtles, jaguars, coyotes, shorebirds, songbirds, and many others; scientists track animal movements and explores threats.

Five desert lions come of age in the African Namib.

The wild counterparts of domesticated species.

A guinea pig named JT has a life-threatening tooth issue, a duck named Dick has a septic joint that needs cleaning, and Savannah and Dayle head to La Ronge, SK. to speak to a class of high schoolers and mentor the next generation of veterinarians.

An elderly dog named Layne needs tests to see if she's stable enough for surgery; a cow suffers from a prolapsed uterus; Lil shows up with a couple of creatures that need the team's help before they can be released back into the wild.

Jimmy and Jenny Desmond and their team are at breaking point, with 38 chimps to look after; losing one of them to illness leaves the team more determined than ever to build them all a new sanctuary where they can live like wild chimps.

Elephants in Camp Phoenix in Zambia's Kafue National Park.

A guinea pig named JT has a life-threatening tooth issue, a duck named Dick has a septic joint that needs cleaning, and Savannah and Dayle head to La Ronge, SK. to speak to a class of high schoolers and mentor the next generation of veterinarians.

An elderly dog named Layne needs tests to see if she's stable enough for surgery; a cow suffers from a prolapsed uterus; Lil shows up with a couple of creatures that need the team's help before they can be released back into the wild.

Jimmy and Jenny Desmond and their team are at breaking point, with 38 chimps to look after; losing one of them to illness leaves the team more determined than ever to build them all a new sanctuary where they can live like wild chimps.

Elephants in Camp Phoenix in Zambia's Kafue National Park.

An inside look at the Nyaru Menteng Rescue Center in Borneo to explore how the orangutan school curriculum works, from nursery through graduation.

A guinea pig named JT has a life-threatening tooth issue, a duck named Dick has a septic joint that needs cleaning, and Savannah and Dayle head to La Ronge, SK. to speak to a class of high schoolers and mentor the next generation of veterinarians.

An elderly dog named Layne needs tests to see if she's stable enough for surgery; a cow suffers from a prolapsed uterus; Lil shows up with a couple of creatures that need the team's help before they can be released back into the wild.

Jimmy and Jenny Desmond and their team are at breaking point, with 38 chimps to look after; losing one of them to illness leaves the team more determined than ever to build them all a new sanctuary where they can live like wild chimps.

Elephants in Camp Phoenix in Zambia's Kafue National Park.

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.

Bizarre birds have various adaptations.

Some survival adaptations make creatures ugly.

A fox needs several surgeries to survive; four raptors leave Hope for Wildlife.

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.

Bizarre birds have various adaptations.

Some survival adaptations make creatures ugly.

The orphaned orangutans attempt to make friends, which is a vital step in rehabilitation.

Embracing an invasive nutria who's become a part of the family; paddling around with Gumbo the goose; visiting a blind hedgehog and his human chum; exploring a swimmer's bond with wild gray seals.

A duck that won't go in the water without a ride from her pooch pal, an elephant that thinks she's a buffalo and a herd of cows that adopt an orphaned deer.

Meeting Charlotte, a schnauzer who enjoys bath time with her guinea pig pal Wallace and a randy ram called Hamish who likes to sneak off to live with a herd of dairy cows instead of his own kind.

A rescued orphaned rhino befriends a playful dog and doting sheep; a big bunny rabbit that babysits boisterous baby lambs; a porcupine that helps two English bulldogs rehabilitate injured animals.

An animal shelter puppy that helps a captive cheetah cub get ready for the wild; an injured monkey who wins over a pack of unfriendly dogs; a lonely mongoose that enjoys foraging with a flock of sheep.

A guinea pig named JT has a life-threatening tooth issue, a duck named Dick has a septic joint that needs cleaning, and Savannah and Dayle head to La Ronge, SK. to speak to a class of high schoolers and mentor the next generation of veterinarians.

An elderly dog named Layne needs tests to see if she's stable enough for surgery; a cow suffers from a prolapsed uterus; Lil shows up with a couple of creatures that need the team's help before they can be released back into the wild.

Jimmy and Jenny Desmond and their team are at breaking point, with 38 chimps to look after; losing one of them to illness leaves the team more determined than ever to build them all a new sanctuary where they can live like wild chimps.

Elephants in Camp Phoenix in Zambia's Kafue National Park.

Uncovering a land of opposites atop New Zealand's South Island, where one of the world's longest sandbars attracts bar-tailed godwits and hungry pilot whales, and drowned river valleys provide a buffet for dusky dolphins and New Zealand fur seals.

Old friends and a breakaway Manzi trio; Kakumbi make a kill.

Julz and Henry from the ZCP track the Kakumbi pups, who face off with a stubborn, razor-tusked warthog; Thandie Mweetwa, ZCP's lion specialist, counts the prides that are pushing the Manzi out of their territory.

Tangle with a leopard; exploring mealtime hierarchy and witnessing a sad vigil.

Grieving the lost Kakumbi pups; the Manzi pack repels big predators.

Uncovering a land of opposites atop New Zealand's South Island, where one of the world's longest sandbars attracts bar-tailed godwits and hungry pilot whales, and drowned river valleys provide a buffet for dusky dolphins and New Zealand fur seals.

Old friends and a breakaway Manzi trio; Kakumbi make a kill.

Julz and Henry from the ZCP track the Kakumbi pups, who face off with a stubborn, razor-tusked warthog; Thandie Mweetwa, ZCP's lion specialist, counts the prides that are pushing the Manzi out of their territory.

Tangle with a leopard; exploring mealtime hierarchy and witnessing a sad vigil.

Grieving the lost Kakumbi pups; the Manzi pack repels big predators.

The orphaned orangutans attempt to make friends, which is a vital step in rehabilitation.

Uncovering a land of opposites atop New Zealand's South Island, where one of the world's longest sandbars attracts bar-tailed godwits and hungry pilot whales, and drowned river valleys provide a buffet for dusky dolphins and New Zealand fur seals.

Old friends and a breakaway Manzi trio; Kakumbi make a kill.

Julz and Henry from the ZCP track the Kakumbi pups, who face off with a stubborn, razor-tusked warthog; Thandie Mweetwa, ZCP's lion specialist, counts the prides that are pushing the Manzi out of their territory.

Tangle with a leopard; exploring mealtime hierarchy and witnessing a sad vigil.

Grieving the lost Kakumbi pups; the Manzi pack repels big predators.

The various methods of raising young, from large groups to single parents.

Animals that employ trickery: stick bugs, lion fish, emperor scorpions, and chameleons.

Recent research into bird-like qualities of dinosaurs.

A patient moves towards recovery; a mysterious illness kills dozens of animals.

The various methods of raising young, from large groups to single parents.

Animals that employ trickery: stick bugs, lion fish, emperor scorpions, and chameleons.

Recent research into bird-like qualities of dinosaurs.

Food-obsessed Beni receives an educational lesson from the local dominant male Petruk; Spanser, a former illegal pet, attempts to control his sweet tooth.

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.

Uncovering a land of opposites atop New Zealand's South Island, where one of the world's longest sandbars attracts bar-tailed godwits and hungry pilot whales, and drowned river valleys provide a buffet for dusky dolphins and New Zealand fur seals.

Old friends and a breakaway Manzi trio; Kakumbi make a kill.

Julz and Henry from the ZCP track the Kakumbi pups, who face off with a stubborn, razor-tusked warthog; Thandie Mweetwa, ZCP's lion specialist, counts the prides that are pushing the Manzi out of their territory.

Tangle with a leopard; exploring mealtime hierarchy and witnessing a sad vigil.

Grieving the lost Kakumbi pups; the Manzi pack repels big predators.

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

Battling for dominion over the river with crocs; catching glimpses of an ultra-rare mangrove snake and an endangered nabarlek wallaby; humpback whale mothers raise their calves in the ocean; false killer whales.

Summer in Yellowstone brings about new challenges; as food becomes scarce, wolves have a surprising strategy to keep their pups fed.

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

Battling for dominion over the river with crocs; catching glimpses of an ultra-rare mangrove snake and an endangered nabarlek wallaby; humpback whale mothers raise their calves in the ocean; false killer whales.

Summer in Yellowstone brings about new challenges; as food becomes scarce, wolves have a surprising strategy to keep their pups fed.

Food-obsessed Beni receives an educational lesson from the local dominant male Petruk; Spanser, a former illegal pet, attempts to control his sweet tooth.

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

Battling for dominion over the river with crocs; catching glimpses of an ultra-rare mangrove snake and an endangered nabarlek wallaby; humpback whale mothers raise their calves in the ocean; false killer whales.

Summer in Yellowstone brings about new challenges; as food becomes scarce, wolves have a surprising strategy to keep their pups fed.

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

Animals that have evolved unusual abilities.

The Grasslands National Park protects the North American mixed grass prairie.

Hope tries to stop the outbreak from spreading; decisions to save Hope for Wildlife.

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

Animals that have evolved unusual abilities.

The Grasslands National Park protects the North American mixed grass prairie.

Going up against infant Celia's case of malaria and spotting a thief in the food store.

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.

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

Battling for dominion over the river with crocs; catching glimpses of an ultra-rare mangrove snake and an endangered nabarlek wallaby; humpback whale mothers raise their calves in the ocean; false killer whales.

Summer in Yellowstone brings about new challenges; as food becomes scarce, wolves have a surprising strategy to keep their pups fed.

Nature's most wanted species don't get the respect they deserve, including the great white shark's electrical sensors, the razor-sharp limbs of the dead leaf mantis and the zombie-creating powers of cordyceps fungi.

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.

Nature's most wanted species don't get the respect they deserve, including the great white shark's electrical sensors, the razor-sharp limbs of the dead leaf mantis and the zombie-creating powers of cordyceps fungi.

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.

Going up against infant Celia's case of malaria and spotting a thief in the food store.

Nature's most wanted species don't get the respect they deserve, including the great white shark's electrical sensors, the razor-sharp limbs of the dead leaf mantis and the zombie-creating powers of cordyceps fungi.

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.

The wild counterparts of domesticated species.

Despite being the second-smallest park in Canada, Point Pelee's bird watching reputation is huge.

The civilization of the first and finest national park in Canada, is surrounded by untamed wildlife.

A look at the care, cleaning and feeding of the animals; a patient refuses to leave.

The wild counterparts of domesticated species.

Despite being the second-smallest park in Canada, Point Pelee's bird watching reputation is huge.

The civilization of the first and finest national park in Canada, is surrounded by untamed wildlife.

Tracking down Lahei, who's gone AWOL; seeing who earns their post-college freedom.

Contemplate shark community hierarchies and discover how they socialize.

Drop in at a pit stop for great whites and search for a north-south connection.

Aim for harmonious coexistence in spots where human and shark worlds collide.

Hammerheads, Galápagos sharks, rays, and other species populate the waters of Cocos Island.

Stunning underwater video taken from the wildest expeditions of the world's greatest dive shops highlight the ocean's most spectacular species.

Nature's most wanted species don't get the respect they deserve, including the great white shark's electrical sensors, the razor-sharp limbs of the dead leaf mantis and the zombie-creating powers of cordyceps fungi.

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.

Summer arrives and Gordon finds out that Tiny the bear cub has been abandoned by her mother.

All airborne creatures embark on remarkable journeys through the air; some routes are short and others span across hundreds of miles.

Chris Packham reveals some of the cleverest animal communicators on the planet; for decades, people have longed to emulate Dr. Dolittle and be able to understand what animals are communicating to one another.

Summer arrives and Gordon finds out that Tiny the bear cub has been abandoned by her mother.

All airborne creatures embark on remarkable journeys through the air; some routes are short and others span across hundreds of miles.

Chris Packham reveals some of the cleverest animal communicators on the planet; for decades, people have longed to emulate Dr. Dolittle and be able to understand what animals are communicating to one another.

Tracking down Lahei, who's gone AWOL; seeing who earns their post-college freedom.

Summer arrives and Gordon finds out that Tiny the bear cub has been abandoned by her mother.

All airborne creatures embark on remarkable journeys through the air; some routes are short and others span across hundreds of miles.

Chris Packham reveals some of the cleverest animal communicators on the planet; for decades, people have longed to emulate Dr. Dolittle and be able to understand what animals are communicating to one another.

Some animals use sheer numbers to infest areas and control new territory.

The Bruce Peninsula is the largest natural landscape remaining in Southern Ontario.

The Pacific Rim National Park Reserve is one of Canada's most beautiful and powerful parks.

Hope says goodbye to two celebrated patients; the grim reality of wildlife rehabilitation.

Some animals use sheer numbers to infest areas and control new territory.

The Bruce Peninsula is the largest natural landscape remaining in Southern Ontario.

The Pacific Rim National Park Reserve is one of Canada's most beautiful and powerful parks.

Congratulating the new Orangutan Jungle School graduates, who aren't all spring chickens; following the convoy to the release site, where the team bids their friends a poignant farewell; enjoying the celebrations as Molly and Bumi move up a grade.

The course of South Africa's Orange River.

The Luangwa River winds through the savannahs of Zambia; a family of elephants journeys through the bush; a young calf struggles to master the art of using his unwieldy trunk.

In the Luangwa Valley, some of the largest animals on earth live side by side; Elephant, giraffe, buffalo, hippo and Nile crocodile; They are the heavyweights.

Liuwa Plains is a place of extremes. For half the year, it's a dry barren plain where only the toughest survive and for the other half, it's a paradise of waterholes.

The Luangwa River belongs to the hippos. The world's largest concentrations of hippos are found here. They spend their days submerged, keeping cool in the hot sun.

Summer arrives and Gordon finds out that Tiny the bear cub has been abandoned by her mother.

All airborne creatures embark on remarkable journeys through the air; some routes are short and others span across hundreds of miles.

Chris Packham reveals some of the cleverest animal communicators on the planet; for decades, people have longed to emulate Dr. Dolittle and be able to understand what animals are communicating to one another.

The pride tries to hunt down adequate food as drought conditions push them and their prey dangerously close to death; Einstein adapts to solo life, then assesses the damage after new mom Kalwezi fights for her cubs' lives.

Rejoining the team for some post-rainy-season drama as they search for Ferinha, Fera and Badalo, whose tracking collars are missing; meeting a new biologist, who helps Lizzie recollar the jaguars.

Lizzie and veterinarian Joares scramble to collar more jaguars amid storms, floods, and power outages.

The pride tries to hunt down adequate food as drought conditions push them and their prey dangerously close to death; Einstein adapts to solo life, then assesses the damage after new mom Kalwezi fights for her cubs' lives.

Rejoining the team for some post-rainy-season drama as they search for Ferinha, Fera and Badalo, whose tracking collars are missing; meeting a new biologist, who helps Lizzie recollar the jaguars.

Lizzie and veterinarian Joares scramble to collar more jaguars amid storms, floods, and power outages.

Congratulating the new Orangutan Jungle School graduates, who aren't all spring chickens; following the convoy to the release site, where the team bids their friends a poignant farewell; enjoying the celebrations as Molly and Bumi move up a grade.

The pride tries to hunt down adequate food as drought conditions push them and their prey dangerously close to death; Einstein adapts to solo life, then assesses the damage after new mom Kalwezi fights for her cubs' lives.

Rejoining the team for some post-rainy-season drama as they search for Ferinha, Fera and Badalo, whose tracking collars are missing; meeting a new biologist, who helps Lizzie recollar the jaguars.

Lizzie and veterinarian Joares scramble to collar more jaguars amid storms, floods, and power outages.

Animals seek protection from threats in large numbers and remote areas.

This oldest National Park in the Canadian Maritimes is home to the highest density of moose in the world.

The Torngat Mountains National Park was set up in part to return the aboriginal people to their birthright.

Hope prepares for one of the most important days of the year; a violent storm threatens the event.

Animals seek protection from threats in large numbers and remote areas.

This oldest National Park in the Canadian Maritimes is home to the highest density of moose in the world.

The Torngat Mountains National Park was set up in part to return the aboriginal people to their birthright.

An introduction to some of the big characters including "class clown" Valentino and "Big Boy" Beni; an emergency arrival of teenage mom Clara and her baby Clarita; vets round up the older orangutans, who are now ready to be released.

Iceland is the world's largest volcanic island and new ground is born daily.

Iceland's volcanoes generate one third of earth's land-based lava, but the land was sculpted by ice.

The highest tides in the world are found in the Bay of Fundy on Canada's east coast.

Along the west coast of Great Britain, the world's longest uninterrupted footpath forges through more than 800 miles of breathtaking scenery; the diverse landscape of the Welsh coast is a geological treasure.

Ireland is small but epic in wonder; surrounded by the Atlantic Ocean, from the Cliffs of Moher to the extraordinary Giant's Causeway, this land has been shaped and reshaped by both the power of water and violent geological forces.

The pride tries to hunt down adequate food as drought conditions push them and their prey dangerously close to death; Einstein adapts to solo life, then assesses the damage after new mom Kalwezi fights for her cubs' lives.

Rejoining the team for some post-rainy-season drama as they search for Ferinha, Fera and Badalo, whose tracking collars are missing; meeting a new biologist, who helps Lizzie recollar the jaguars.

Lizzie and veterinarian Joares scramble to collar more jaguars amid storms, floods, and power outages.

Explore the harsh realities that shape hippo life on Zambia's Luangwa River; meet a bull who serves as river master, a mother determined to protect her newborn calf and ancient rivals who fight to the death as the dry season reaches its apex.

Chase three young gazelles as they navigate the perils of life in the Serengeti.

Some animals use sheer numbers to infest areas and control new territory.

Explore the harsh realities that shape hippo life on Zambia's Luangwa River; meet a bull who serves as river master, a mother determined to protect her newborn calf and ancient rivals who fight to the death as the dry season reaches its apex.

Chase three young gazelles as they navigate the perils of life in the Serengeti.

Some animals use sheer numbers to infest areas and control new territory.

An introduction to some of the big characters including "class clown" Valentino and "Big Boy" Beni; an emergency arrival of teenage mom Clara and her baby Clarita; vets round up the older orangutans, who are now ready to be released.

Explore the harsh realities that shape hippo life on Zambia's Luangwa River; meet a bull who serves as river master, a mother determined to protect her newborn calf and ancient rivals who fight to the death as the dry season reaches its apex.

Chase three young gazelles as they navigate the perils of life in the Serengeti.

Some animals use sheer numbers to infest areas and control new territory.

Many species migrate in massive numbers.

Riding Mountain National Park in Manitoba.

Fundy National Park in southern New Brunswick.

Dr. Barry gets married; an eagle needs surgery; Hope releases the deer that arrived as fawns.

Many species migrate in massive numbers.

Riding Mountain National Park in Manitoba.

Fundy National Park in southern New Brunswick.

"Class Clown" Valentino is busy showing off; the staff decide that "Big Boy" Beni needs to lose weight; teenage mom Clara and her baby Clarita face a return to island life; they welcome a new pupil: Alba, the only reported albino orangutan.

The ultimate battle for dominance as scientists try to pick out the alpha male in a pack of 100-plus great white sharks off the New Zealand coast.

Experts examine whether female or male sharks are more dominant, testing jumping, boldness and strength in a series of challenges.

Wake up with a new generation of lion cubs, zebra calves, and hyena pups on the African savannah, where every sunrise brings hope and new challenges. Celebrate their first strides toward independence in a land where every step is a test of survival.

Koalas live in isolated forests in east and southeast Australia.

Koala behavior changes dramatically during mating season.

Explore the harsh realities that shape hippo life on Zambia's Luangwa River; meet a bull who serves as river master, a mother determined to protect her newborn calf and ancient rivals who fight to the death as the dry season reaches its apex.

Chase three young gazelles as they navigate the perils of life in the Serengeti.

Some animals use sheer numbers to infest areas and control new territory.

A cat named Lovebug requires emergency surgery after being shot in the leg; a Pomeranian named Cheeka has a bad cough; Savannah and Dayle take a trip to learn some horse-handling skills from a well-known Métis expert.

Brooke demonstrates the ever-important job of vet techs as she helps a dog named Charlie who was injured in a dogfight; Dr. Savannah treats a dog who was kicked by a horse; Brooke and Savannah then head over to a spay and neuter clinic in Sturgeon Lake.

Exploring pine forests, coral reefs and the Everglades to find out what scientists are doing to protect alligators, mini deer, manatees and other vulnerable species from human and animal invaders.

Endangered carnivores of Africa.

A cat named Lovebug requires emergency surgery after being shot in the leg; a Pomeranian named Cheeka has a bad cough; Savannah and Dayle take a trip to learn some horse-handling skills from a well-known Métis expert.

Brooke demonstrates the ever-important job of vet techs as she helps a dog named Charlie who was injured in a dogfight; Dr. Savannah treats a dog who was kicked by a horse; Brooke and Savannah then head over to a spay and neuter clinic in Sturgeon Lake.

Exploring pine forests, coral reefs and the Everglades to find out what scientists are doing to protect alligators, mini deer, manatees and other vulnerable species from human and animal invaders.

Endangered carnivores of Africa.

"Class Clown" Valentino is busy showing off; the staff decide that "Big Boy" Beni needs to lose weight; teenage mom Clara and her baby Clarita face a return to island life; they welcome a new pupil: Alba, the only reported albino orangutan.

A cat named Lovebug requires emergency surgery after being shot in the leg; a Pomeranian named Cheeka has a bad cough; Savannah and Dayle take a trip to learn some horse-handling skills from a well-known Métis expert.

Brooke demonstrates the ever-important job of vet techs as she helps a dog named Charlie who was injured in a dogfight; Dr. Savannah treats a dog who was kicked by a horse; Brooke and Savannah then head over to a spay and neuter clinic in Sturgeon Lake.

Exploring pine forests, coral reefs and the Everglades to find out what scientists are doing to protect alligators, mini deer, manatees and other vulnerable species from human and animal invaders.

Endangered carnivores of Africa.

Cabo Pulmo is the site of an extraordinary marine recovery.

Terra Nova National Park on the Newfoundland coast is a beautiful enigma with a rugged forest.

Quttinirpaaq National Park is affected by climate change.

Hope is taking on more animals and more responsibilities, but there are concerns about Hope's own health.

Cabo Pulmo is the site of an extraordinary marine recovery.

Terra Nova National Park on the Newfoundland coast is a beautiful enigma with a rugged forest.

Quttinirpaaq National Park is affected by climate change.

Kasper, who is 90kgs, somehow eludes the capture team and climbs 30 meters high in a tree; Beni's food theft and ongoing weight gain starts causing serious concern for his health.

A troop of rescue center monkeys that have adopted a litter of stray kittens; a loyal dog helping a rescued raccoon overcome her fears; an emu raised by Irish setters.

Meet more Amazing Animal Friends, including ranch manager Barclay, a Great Dane who happens to be a gifted horse whisperer. In Africa, a tiny marmoset called Thor has become obsessed with two young rescued mongooses.

With the help of some surprising creatures from around the world, we'll discover how animals take to the air, defying the force all airborne animals must conquer - gravity.

We are up and away with the world of powered flight - revealing why peregrine falcons can top 200 miles an hour, how a hummingbird is a slave to its own rather manic lifestyle, and that the albatross's secret to flying for free... is its nose!

In the busy skies above our planet we'll meet a creature that creates sound out of thin air with the world's fastest courtship display and arguably the world's most aggressive bird, harnessing cold aggression to protect its patch of sky.

A cat named Lovebug requires emergency surgery after being shot in the leg; a Pomeranian named Cheeka has a bad cough; Savannah and Dayle take a trip to learn some horse-handling skills from a well-known Métis expert.

Brooke demonstrates the ever-important job of vet techs as she helps a dog named Charlie who was injured in a dogfight; Dr. Savannah treats a dog who was kicked by a horse; Brooke and Savannah then head over to a spay and neuter clinic in Sturgeon Lake.

Exploring pine forests, coral reefs and the Everglades to find out what scientists are doing to protect alligators, mini deer, manatees and other vulnerable species from human and animal invaders.

Endangered carnivores of Africa.