Whale researcher, Nan Hauserat, is in the Cook Islands to research humpback whales.

South Cuba's remarkable coral reefs have been unexplored for over 50 years.

Winter slowly releases its iron grip on the North Atlantic; meet a family of playful otters, a lovelorn Arctic fox, and a reindeer herd determined to reach their calving grounds despite the fearsome weather.

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.

Whale researcher, Nan Hauserat, is in the Cook Islands to research humpback whales.

South Cuba's remarkable coral reefs have been unexplored for over 50 years.

Winter slowly releases its iron grip on the North Atlantic; meet a family of playful otters, a lovelorn Arctic fox, and a reindeer herd determined to reach their calving grounds despite the fearsome weather.

These Parks are monitored by Ocean advocates dedicated to maintaining the shark feeding grounds, turtle populations, and marine spawning grounds that line this incredible reef system.

Pukaskwa's unpredictable landscape features boreal forests and iron-rich plutonic rocks.

Mingan Archipelago, along the St. Lawrence River, is composed of 30 limestone islands and more than 1,0000 islets.

A baby owl needs to be reunited with its parents; a volunteer returns to the rehab in a new role; a duck rescue goes wet and wild.

These Parks are monitored by Ocean advocates dedicated to maintaining the shark feeding grounds, turtle populations, and marine spawning grounds that line this incredible reef system.

Pukaskwa's unpredictable landscape features boreal forests and iron-rich plutonic rocks.

Mingan Archipelago, along the St. Lawrence River, is composed of 30 limestone islands and more than 1,0000 islets.

Young orangutans who have lost their mothers to poaching and deforestation learn the skills they'll need to survive in the wild at a unique forest school.

These Parks are monitored by Ocean advocates dedicated to maintaining the shark feeding grounds, turtle populations, and marine spawning grounds that line this incredible reef system.

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.

The Savanna's woodland of southern Africa is a unique ecosystem in the world. A great amount of branches and bushes have created a dark maze, where predators and preys are in a continuous state of tension. Visibility is little.

Whale researcher, Nan Hauserat, is in the Cook Islands to research humpback whales.

South Cuba's remarkable coral reefs have been unexplored for over 50 years.

Winter slowly releases its iron grip on the North Atlantic; meet a family of playful otters, a lovelorn Arctic fox, and a reindeer herd determined to reach their calving grounds despite the fearsome weather.

Twin fawns arrive at the centre; a volunteer searches for orphans in the woods; Hope tends to a tiny owl.

Amanda goes on an adventure to rescue a waterbuck caught by a poacher's snare; the center's resident hyena is treated for fly-bitten ears; Alma gets a mysterious late night monkey delivery.

Follow the team in healing and releasing a grumpy sea turtle, and then meet a sea lion with an unusual injury that must be taken by crane to the rescue centre. Find out how the vet aids an aging fruit bat and a community rescues a one-eyed seal pup.

Twin fawns arrive at the centre; a volunteer searches for orphans in the woods; Hope tends to a tiny owl.

Amanda goes on an adventure to rescue a waterbuck caught by a poacher's snare; the center's resident hyena is treated for fly-bitten ears; Alma gets a mysterious late night monkey delivery.

Follow the team in healing and releasing a grumpy sea turtle, and then meet a sea lion with an unusual injury that must be taken by crane to the rescue centre. Find out how the vet aids an aging fruit bat and a community rescues a one-eyed seal pup.

Young orangutans who have lost their mothers to poaching and deforestation learn the skills they'll need to survive in the wild at a unique forest school.

Twin fawns arrive at the centre; a volunteer searches for orphans in the woods; Hope tends to a tiny owl.

Amanda goes on an adventure to rescue a waterbuck caught by a poacher's snare; the center's resident hyena is treated for fly-bitten ears; Alma gets a mysterious late night monkey delivery.

Follow the team in healing and releasing a grumpy sea turtle, and then meet a sea lion with an unusual injury that must be taken by crane to the rescue centre. Find out how the vet aids an aging fruit bat and a community rescues a one-eyed seal pup.

The Exuma Cays are tiny islands near the Bahamian Capital of Nassau.

Killarney Provincial Park acted as a battleground early in the environmental movement.

Nanabijou's trails may affect dear, wolf, and moose populations.

Busier than ever, Hope and the team struggle to handle the huge caseload; a volunteer helps an injured bird.

The Exuma Cays are tiny islands near the Bahamian Capital of Nassau.

Killarney Provincial Park acted as a battleground early in the environmental movement.

Nanabijou's trails may affect dear, wolf, and moose populations.

Young orangutans who have lost their mothers to poaching and deforestation learn the skills they'll need to survive in the wild at a unique forest school.

The Exuma Cays are tiny islands near the Bahamian Capital of Nassau.

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.

As the leaves change, wild urges grip the animals; Rams Roger and Hamish battle for dominance, while Sally the hen flies the coop for a tour of the farm.

Sharks are at risk in Costa Rica.

Twin fawns arrive at the centre; a volunteer searches for orphans in the woods; Hope tends to a tiny owl.

Amanda goes on an adventure to rescue a waterbuck caught by a poacher's snare; the center's resident hyena is treated for fly-bitten ears; Alma gets a mysterious late night monkey delivery.

Follow the team in healing and releasing a grumpy sea turtle, and then meet a sea lion with an unusual injury that must be taken by crane to the rescue centre. Find out how the vet aids an aging fruit bat and a community rescues a one-eyed seal pup.

On the first day of spring in Australia, creatures look for either dinner or a date, ranging from kangaroos in the grasslands to koalas in the trees and freshwater crocodiles.

Tending to a spring rush and a rude roo.

Aiding a pelican in peril and a mad koala.

On the first day of spring in Australia, creatures look for either dinner or a date, ranging from kangaroos in the grasslands to koalas in the trees and freshwater crocodiles.

Tending to a spring rush and a rude roo.

Aiding a pelican in peril and a mad koala.

Young orangutans who have lost their mothers to poaching and deforestation learn the skills they'll need to survive in the wild at a unique forest school.

On the first day of spring in Australia, creatures look for either dinner or a date, ranging from kangaroos in the grasslands to koalas in the trees and freshwater crocodiles.

Tending to a spring rush and a rude roo.

Aiding a pelican in peril and a mad koala.

Across the continent, the land and its wildlife breathe in warmth and renewal; for some animals, courtship rituals begin to heat up as battles for dominance break out; for others, it's the time to tend to brand new life.

Quetico Provincial Park pioneers forest fire strategies and faces a declining moose population.

The jewel of the Ontario parks system gives a muse to Tom Thompson and draws many researchers.

Starting up a raccoon adoption agency; Hope tries to make peace between wild enemies; a kidnapped fawn needs to be reunited with its mother.

Across the continent, the land and its wildlife breathe in warmth and renewal; for some animals, courtship rituals begin to heat up as battles for dominance break out; for others, it's the time to tend to brand new life.

Quetico Provincial Park pioneers forest fire strategies and faces a declining moose population.

The jewel of the Ontario parks system gives a muse to Tom Thompson and draws many researchers.

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.

Across the continent, the land and its wildlife breathe in warmth and renewal; for some animals, courtship rituals begin to heat up as battles for dominance break out; for others, it's the time to tend to brand new life.

Adventure seekers cross Ethiopia's Danakil Depression to view the Erte Ale volcano.

Tom Pfeiffer hears Anak is going into a violent phase and flies to Indonesia to see if the Child of Fire is ready to repeat the pattern of its ancestor.

The volcano's destructive power is a reminder of nature's dominance.

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

Volcanologist Tom Pfeiffer explores some of Indonesia's most remote volcanoes.

The ancient Aztec legend of Popocatépetl.

On the first day of spring in Australia, creatures look for either dinner or a date, ranging from kangaroos in the grasslands to koalas in the trees and freshwater crocodiles.

Tending to a spring rush and a rude roo.

Aiding a pelican in peril and a mad koala.

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.

Spinner dolphins hunt shoals of lanternfish while dodging giant rays.

Bighorn rams rattle the mountaintops; Brown bears battle, desperate to fatten up for winter; Sharp-tailed grouse shake their tail-feathers; Wild stallions rumble with beauty and grace.

From the Highlands to the Alps, Europe's evocative landscapes are the backdrop for epic wildlife drama; normally stoic red deer go wild during the rut; wolf packs clash over territory, and foxes do the foxtrot but it's not as nice as it sounds.

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.

Spinner dolphins hunt shoals of lanternfish while dodging giant rays.

Bighorn rams rattle the mountaintops; Brown bears battle, desperate to fatten up for winter; Sharp-tailed grouse shake their tail-feathers; Wild stallions rumble with beauty and grace.

From the Highlands to the Alps, Europe's evocative landscapes are the backdrop for epic wildlife drama; normally stoic red deer go wild during the rut; wolf packs clash over territory, and foxes do the foxtrot but it's not as nice as it sounds.

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.

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.

Spinner dolphins hunt shoals of lanternfish while dodging giant rays.

Bighorn rams rattle the mountaintops; Brown bears battle, desperate to fatten up for winter; Sharp-tailed grouse shake their tail-feathers; Wild stallions rumble with beauty and grace.

From the Highlands to the Alps, Europe's evocative landscapes are the backdrop for epic wildlife drama; normally stoic red deer go wild during the rut; wolf packs clash over territory, and foxes do the foxtrot but it's not as nice as it sounds.

Summer is the time of plenty across America; it's a chance for animals to reap nature's bounty while they can; the year's young begin to explore their world, while new parents make use of the long days to make sure they grow up strong.

Determining the effect of global warming on the park's glaciers and wolverine population.

A healthy bison population is threatened by where they eat.

A new volunteer steps up to the challenge; Hope's first fawn of the year interrupts delicate surgery on an injured owl.

Summer is the time of plenty across America; it's a chance for animals to reap nature's bounty while they can; the year's young begin to explore their world, while new parents make use of the long days to make sure they grow up strong.

Determining the effect of global warming on the park's glaciers and wolverine population.

A healthy bison population is threatened by where they eat.

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.

Summer is the time of plenty across America; it's a chance for animals to reap nature's bounty while they can; the year's young begin to explore their world, while new parents make use of the long days to make sure they grow up strong.

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.

Spinner dolphins hunt shoals of lanternfish while dodging giant rays.

Bighorn rams rattle the mountaintops; Brown bears battle, desperate to fatten up for winter; Sharp-tailed grouse shake their tail-feathers; Wild stallions rumble with beauty and grace.

From the Highlands to the Alps, Europe's evocative landscapes are the backdrop for epic wildlife drama; normally stoic red deer go wild during the rut; wolf packs clash over territory, and foxes do the foxtrot but it's not as nice as it sounds.

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 sea grass.

Enduring winter and early spring on the west coast, where animals eke out a chilly existence; watching red deer battle on windswept Inishvickillane, welcome seal pups amid howling storms on the Inishkea islands.

Exploring a 1,500-year-old monastery among the dizzying crags of the world-famous Skellig Islands; Spy Manx shearwaters and humpback whales, pygmy shrews on Clare, and the Aran Islands at an autumn spectacle.

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 sea grass.

Enduring winter and early spring on the west coast, where animals eke out a chilly existence; watching red deer battle on windswept Inishvickillane, welcome seal pups amid howling storms on the Inishkea islands.

Exploring a 1,500-year-old monastery among the dizzying crags of the world-famous Skellig Islands; Spy Manx shearwaters and humpback whales, pygmy shrews on Clare, and the Aran Islands at an autumn spectacle.

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.

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 sea grass.

Enduring winter and early spring on the west coast, where animals eke out a chilly existence; watching red deer battle on windswept Inishvickillane, welcome seal pups amid howling storms on the Inishkea islands.

Exploring a 1,500-year-old monastery among the dizzying crags of the world-famous Skellig Islands; Spy Manx shearwaters and humpback whales, pygmy shrews on Clare, and the Aran Islands at an autumn spectacle.

In Autumn, change sweeps across America; as the trees greet the chill with a blaze of color, it's make or break time for animals; time to pull up stakes, make last minute preparations, and often find a mate before the cold sets in.

Feeding a Giant Panda cub named Bao Bao.

Feeding a pride of adolescent lions.

A hurricane slams the rehab, knocking an osprey nest out of its tree; Hope scrambles to save the babies in the middle of the storm.

In Autumn, change sweeps across America; as the trees greet the chill with a blaze of color, it's make or break time for animals; time to pull up stakes, make last minute preparations, and often find a mate before the cold sets in.

Feeding a Giant Panda cub named Bao Bao.

Feeding a pride of adolescent lions.

Two wild black rhinos fight to the death; a new ambassador for the black rhinos.

Ol Pejeta is in the shadow of Mount Kenya, but it has one of the most stunning sunrises in all of Africa.

The staff attempts to put radio transmitting collars on the lions to keep track of the population.

The park's hyena population grows.

Triggering the natural instincts of North African white rhinos prompts their return to the wild.

An attempt to discover what is killing off the black rhino, before it's too late.

Eight giraffes are moved to a newly opened wildlife area on an island.

An agitated elephant ends up in a local village and the vets need to find a helicopter immediately.

The vets attempt to breed the rare Grevy's zebras while the more common zebras have to be moved.

Batian organizes a massive translocation of three species, but things don't go according to plan.

The wild grasslands are a dangerous place for Africa's smallest monkey.

Lions, hyenas and buffalo work together to survive in the Zambian wilderness.

A bull hippo, a young lion and a massive buffalo meet their fates in the Zambian wilderness.

Zambia's wildest places are a paradise for the animals that call them home, including the Luangwa River Valley, the Liuwa Plain and the Kasanka National Park.

Trek across the Namibian desert with the bush elephant and learn how it keeps its cool in a place with little food or shade; discover how this giant consumes specific plants, digs wells and hikes endless dunes in a quest to find precious water.

Navigate a mangrove forest in Borneo with the saltwater crocodile, which is perfectly suited to life among the watery roots; discover how this reptile uses the environment to regulate its temperature and why its patience makes it a good hunter.

Investigate the art of nest making with the jungle's builder, the orangutan; shadow Max as he tries to escape the insect-filled floor of the Borneo rainforest and takes inspiration from this solitary primate's natural engineering skills.

A completely new way of looking at the animal kingdom with adventurer, survivalist, and zoology nut Max Djenohan. Max is on a mission. To unlock and mimic the survival skills of some of the most charismatic animals on Earth.

How animals survive in the hostile Drakensberg Mountain range.

The Cloud Mountains of South Africa are home to ancient species of animals and plants.

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

The Sandveld has a huge variety of life within its various ecosystems.

Travel around the globe to witness the atmospheric shifts that take place in March, from the wave of cherry blossoms that unfold across Japan to the final raft of green sea turtles that arrive on the Great Barrier Reef islands to lay eggs.

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.

Winter is the ultimate challenge. As temperatures plunge across much of America, some animals escape to milder climes of the South, while others stay put and tough out the brutal cold and blizzards that blanket the North.

Behind the scenes of North America's largest zoo kitchen.

The National Zoo feeds its animals by growing their own food.

The rehab is up all night with three tiny orphans needing round-the-clock care.

Winter is the ultimate challenge. As temperatures plunge across much of America, some animals escape to milder climes of the South, while others stay put and tough out the brutal cold and blizzards that blanket the North.

Behind the scenes of North America's largest zoo kitchen.

The National Zoo feeds its animals by growing their own food.

Predators must kill to survive, but their next meal is always in question.

Snakes, spiders, and scorpions comprise some of the most venomous creatures in the world.

Sharks are some of the oldest predators still living.

Reptiles have expanded into nearly every habitat in Africa.

The large Manzi pack in the lush heartland, the Kakuli pack in the badlands and the tiny Stork colony pack living at the park's edge; Julz shares their victories and defeats.

As the temperatures rise, the water is getting scarce; the Manzi pack must stand alongside predators to hydrate at a remaining precious water spot; Weka's pack feed the pups; the Stork colony thrive against all odds.

A lost Stork pack puppy; Manzi pups are finding their place in the hierarchy, figuring out neighbor friends and foes; Julz goes on a search mission for the missing Kakuli pack in the desolate Badlands.

The Manzi dogs dodge a leopard while they treat themselves to a stolen feast; there is no such luck for the Kakuli pack on the hunt, as they're foiled by a puku antelope; Julz and Simon find the Stork pack and retreat from charging elephants.

A completely new way of looking at the animal kingdom with adventurer, survivalist, and zoology nut Max Djenohan. Max is on a mission. To unlock and mimic the survival skills of some of the most charismatic animals on Earth.

A completely new way of looking at the animal kingdom with adventurer, survivalist, and zoology nut Max Djenohan. Max is on a mission. To unlock and mimic the survival skills of some of the most charismatic animals on Earth.

A completely new way of looking at the animal kingdom with adventurer, survivalist, and zoology nut Max Djenohan. Max is on a mission. To unlock and mimic the survival skills of some of the most charismatic animals on Earth.

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.

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.

Zambia's Luangwa River hippos are living the easy life, or so it seems. They are one of the heaviest creatures on Earth, and life fluctuates between the serenity of sunbathing and the terrible brutality of dominance and aggression.

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

Red Colobus Monkeys on the island of Zanzibar.

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.

Along the world's longest border between Canada and the USA, wildlife lives with one foot in two worlds; animals walk a tightrope of barriers and conflicting regulations, where one step over the line can mean the difference between life and death.

Food acts as an important way for animals to keep busy, happy and healthy.

A herd of elephants from the Calgary Zoo arrive at the National Zoo in Washington D.C.

Pondering a doe's potential as a surrogate mother and the chances that two fawns have in the ER.

Along the world's longest border between Canada and the USA, wildlife lives with one foot in two worlds; animals walk a tightrope of barriers and conflicting regulations, where one step over the line can mean the difference between life and death.

Food acts as an important way for animals to keep busy, happy and healthy.

A herd of elephants from the Calgary Zoo arrive at the National Zoo in Washington D.C.

Jean Du Plessis takes a trip through the Serengeti with migrating wildebeest.

Jean witnesses how infant calves fare against the predatorial lions and crocodiles of the Mara.

Jean visits Tanzania's Ngorongoro Crater, home to the highest concentration of mammals in the world.

Jean climbs through Mount Killimanjaro's five different climates.

Jean meets the inhabitants of the Serengeti.

Predators must kill to survive, but their next meal is always in question.

Snakes, spiders, and scorpions comprise some of the most venomous creatures in the world.

Sharks are some of the oldest predators still living.

Reptiles have expanded into nearly every habitat in Africa.

A female leopard named Olimba in Zambia's Luangwa Valley.

Dreamer, a tiger cub, forms a new friendship with the adolescent Misfit. The two unlikely friends work together to survive the hardships ahead.

Twin male lions have ruled the Nsefu Pride for three years.

More than 480 different species of birds spread their wings in the Luangwa Valley over the course of a year.

Modern science explains the evolutionary history behind some of the planet's largest, weirdest and most fearsome animals.

Julz catches up with the Manzi pack at a kill; the Kakuli pack takes great risks while waiting for the rain to come; a hunt with a returning male of the Stork colony.

An emotional Julz says farewell to the dog packs; he discovers the Stork colony pups hunting guinea fowl, and is heartened to find the Kakuli pups feeding on an antelope carcass; the playful Manzi pack corner a tough warthog.

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

A look at how the king cobra finds a queen during mating season and how one wrangler must keep the snakes from getting too close to their human neighbors.

The king of a gelada baboon family must battle foes and win the respect of his queen in order to keep his reign for another year.

Experience the North Atlantic's intense, brief summer with its animal residents; follow Arctic fox cubs learning to hunt for survival, an otter pup going solo for the first time, a mate-seeking puffin, and tiny reindeer taking their first steps.

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

The St. Louis Zoo caters to a wide range of tastes for some of the world's largest eaters, including an anaconda and hippos.

The keepers at the St. Louis Zoo make sure that every animal family gets the proper nutrition.

Two tricky patients finally go free; 50 babies are born all at once.

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

The St. Louis Zoo caters to a wide range of tastes for some of the world's largest eaters, including an anaconda and hippos.

The keepers at the St. Louis Zoo make sure that every animal family gets the proper nutrition.

How animals survive in the hostile Drakensberg Mountain range.

The Cloud Mountains of South Africa are home to ancient species of animals and plants.

The Sandveld has a huge variety of life within its various ecosystems.

The Namaqualand of South Africa briefly transforms every spring from a desert to an oasis.

De Hoop hosts some of the biggest and smallest animals on the planet in its varied habitats.

The Kogelberg Biosphere Reserve.

Mizumu, a male hyena, searches for a new clan.

A family of wild dogs living in a corner of Zambia's Luangwa Valley.

Spotty the hyena must ascend to the leadership of the Chimbwe Clan in Zambia's Luangwa Valley.

Zambia's Luangwa River hippos are living the easy life, or so it seems. They are one of the heaviest creatures on Earth, and life fluctuates between the serenity of sunbathing and the terrible brutality of dominance and aggression.

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

The astonishing speed, agility and camouflage of nature's most skilled predators, from wily Komodo dragons to elusive Amazon leaf fish.

Leaving their native home in South Africa, seven lions are being transported to Akagera National Park, covering thousands of miles to the heart of Africa, in order to revive the local lion species.

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

Lynn plays surrogate to baby beavers; Zach is forced to follow a seal along the coastline; a patient returns after a release goes wrong.

The wildlife rescue team attempt to collar an elephant, save a vervet monkey's leg, and help a baboon fend for herself.

Scientists are studying cats in greater detail than before, and their groundbreaking finds challenge the conventional ideas.

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

The staff at the St. Louis Zoo deals with managing the nutritional needs of picky eaters.

Zoo keepers feed the minds of their hungry animals. Whether it's puzzles and piñatas, or honey tubes and herb gardens, food is the icing on the cake to prevent boredom.

Hope and Dr. Barry break ground on new chapters in their life, Hope rebuilding the rehab and Dr. Barry setting out on his own.

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

The staff at the St. Louis Zoo deals with managing the nutritional needs of picky eaters.

Zoo keepers feed the minds of their hungry animals. Whether it's puzzles and piñatas, or honey tubes and herb gardens, food is the icing on the cake to prevent boredom.

An old Leopard struggles to find a meal while avoiding a pride of lions.

An aging leopard in Zambia is challenged by a younger female.

Lions along the Luangwe River raise their cubs.

A Lion cub runt must survive alone.

Adolescent lions face many challenges.

Spotted Hyenas on the Liuwa Plains in western Zambia.

The astonishing speed, agility and camouflage of nature's most skilled predators, from wily Komodo dragons to elusive Amazon leaf fish.

The dry season approaches in Zambia's Luangwa Valley.

South Luangwa National Park on tip of Africa's Great Rift Valley.

Intense drought in the Luangwa Valley in Zambia.

A global El Niño event strengthens the drought.

Trek across the Namibian desert with the bush elephant and learn how it keeps its cool in a place with little food or shade; discover how this giant consumes specific plants, digs wells and hikes endless dunes in a quest to find precious water.

Navigate a mangrove forest in Borneo with the saltwater crocodile, which is perfectly suited to life among the watery roots; discover how this reptile uses the environment to regulate its temperature and why its patience makes it a good hunter.

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

Soothing a bitten koala and itchy possums.

Tackling pet hoarding and a deadly snake.

The wild counterparts of domesticated species.

Keepers dole out buckets of fresh fish for their sea lions and penguins and a bouquet of veggies for their century old tortoises.

Feeding critically endangered orangutans, cheetah and painted dogs.

Hope's open house is bigger than ever; a mysterious visitor leaves a big impression.

The wild counterparts of domesticated species.

Keepers dole out buckets of fresh fish for their sea lions and penguins and a bouquet of veggies for their century old tortoises.

Feeding critically endangered orangutans, cheetah and painted dogs.

When the rains begin in the Luangwa Valley the dry wilderness transforms into a luscious wetland.

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.

Along the bank of the Luangwa River is a troop of eighty or so baboons. This is the story of a family, and a young male baboon who faces difficult choices as he comes of age.

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.

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.