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

Professor Ben Garrod explores the evolution of the body's largest organ, skin.

Learn how South America's rich diversity of weather fuels an even richer diversity of life; examine the Amazon rainforest's oxygen-breathing trees, follow the arc of a vast cloud river and meet flamingos that thrive in the sun's scorching UV rays.

A feature on the Andean Altiplano, a rugged plain in Bolivia.

Visitors from around the world come to La Maurice National Park each fall when the leaves change.

The Gulf Island National Park sits between the development of Vancouver Island and British Columbia.

Recently released ravens are attacked; tiny orphans struggle; six stinky skunks.

A feature on the Andean Altiplano, a rugged plain in Bolivia.

Visitors from around the world come to La Maurice National Park each fall when the leaves change.

The Gulf Island National Park sits between the development of Vancouver Island and British Columbia.

In a South African sanctuary, Liz meets a nine-year-old lion called Ricci whose teeth are in such rough shape he can't eat; specially trained vets use unique tools and slightly more anaesthetic than estimated on the wakeful patient.

In Sierra Leone, a young chimpanzee deals with a potentially cancerous growth on her abdomen; wildlife vets deliver a diagnosis then get a fright mid-surgery.

A majestic Asian elephant who survived a catastrophic flood at his zoo in Tbilisi, Georgia has a badly infected tusk; surgeons race to remove the tusk and save the gentle giant's life.

Diving into a busy summer at the RSPCA Wildlife Hospital, where vet Emily takes the pressure off a gassy koala mum; the team fight a wave of lorikeet paralysis syndrome and vet Karina uses a teddy bear to rescue a flying fox pup.

Join vets Emily and Martine in the OR, where Dolly the koala's spaying surgery takes a scary turn; aid a run-over echidna with vet Nigel; see rescue officer Chantelle's slick fix for a snared lizard; probe a possible birdnapping with vet Karina.

Head into surgery with Mara the koala, who needs a life-saving tooth operation; assess an injured sugar glider with vet Tim; rescue officer Elise pulls a flying fox out of a gutter; see nurse Bree's clutch of python eggs hatch.

Rescue officers use a technique called flagging to nab a koala with dangerously inflamed eyes; vet Tim soothes burned possum feet; vet Karina examines a half-drowned platypus before referring him to a specialist.

Juggle the demands of caring for sick koala joeys with vet Claire; see what it takes to save a squirrel glider caught in barbed wire; take care of an exhausted owl; get a big surprise when vet Tim X-rays a turtle that was struck by a car.

Follow vet Tim as he races to save rescued koala Ashley; then meet a flying fox with an extra digit who needs some TLC from vet Martine; calculate the odds for a run-over kangaroo joey with vet Emily; then celebrate the release of 50 lorikeets.

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

Taking a journey through the eyes of catfish, ocelots, and other native creatures, celebrating the Lone Star State's landscapes and wildlife, and looking at how crucial conservation efforts can save Texas' unique habitats.

The rehab is flooded with orphaned seals, with some frozen solid in ice.

Hope puts everything on the line to save an orphaned black bear cub; two bobcats are ready for release, but they won't go easy.

When a great horned owl arrives covered in oil, Doctor Sherri must put it through a terrifying, life-saving procedure; boxes of young foxes need help and attention.

Hope's team struggles to help two rescued harp seals learn the natural behaviors they will need to survive in the wild.

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.

Get to know Winston, a tiny abandoned cub who imprints on Judy as she nurses him 24-7.

Scientists and enthusiasts reveal the crucial roles bugs play on the planet and what the future would be without them.

The colorful world of Earth's essential pollinators - bees, moths and butterflies.

A feature on Zion National Park, a kingdom of towering rocks, deep canyons, and sandstone walls.

Madagascar is home to strange animals not found anywhere else on Earth; when these animals fight for supremacy, their battles are just as strange, from weird neck-wrestling weevils to ring tailed lemur moms that go into battle with baby on board.

Australia is home to an eclectic array of creatures, and the ways to succeed as an alpha are just as diverse; the beach turns into a dueling ground and the outback becomes a boxing ring, as animals face off with their own kind.

An eagle falls out of its nest; Hope's fawns are in trouble; an attic full of songbirds.

A feature on Zion National Park, a kingdom of towering rocks, deep canyons, and sandstone walls.

Madagascar is home to strange animals not found anywhere else on Earth; when these animals fight for supremacy, their battles are just as strange, from weird neck-wrestling weevils to ring tailed lemur moms that go into battle with baby on board.

Australia is home to an eclectic array of creatures, and the ways to succeed as an alpha are just as diverse; the beach turns into a dueling ground and the outback becomes a boxing ring, as animals face off with their own kind.

Giles cares for a sun bear cub while building a rescue center in Laos.

Giles helps two moon bear cubs and is shocked with news at the sanctuary.

A veterinarian and his team encounter dangerous challenges as they care for endangered animals at a hospital in the Guatemalan jungle.

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.

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.

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.

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.

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.

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.

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.

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.

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.

The team saves a massive sea lion caught in a plastic noose; a visit to the Rescue Centre where a harbor seal pup may lose its eyesight; a baby sea otter needs a risky but life-saving surgery.

Battling wind and waves to find a sea lion trapped in a plastic ring; visiting a rescue centre, where over 80 orphan seals must be fed several times a day to prepare for release into the wild; an Amazonian duck gets a miraculous operation.

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.

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.

A high-tech autopsy on a Nile crocodile unlocks secrets behind its hunting prowess.

A feeding frenzy for hungry predators as the Great Migration arrives.

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.

Footage of the remote desert of Arizona, including the state's canyons, towering cliffs and fossilized dunes.

The African savanna is an epic landscape, and whether it's head-bashing hippos, hormone-crazed elephants or dueling lions, battles that rage on the savanna are just as epic.

Welcome to India - a land of exotic animals and exotic warfare; monkeys stage dusty dust-ups, blackbucks wage open war on the open plains, and peacock dandies swing switchblades: these are colorful battles worthy of a vibrant land.

An old volunteer returns; an endangered orphan is rescued; a miracle on the half shell.

Footage of the remote desert of Arizona, including the state's canyons, towering cliffs and fossilized dunes.

The African savanna is an epic landscape, and whether it's head-bashing hippos, hormone-crazed elephants or dueling lions, battles that rage on the savanna are just as epic.

Welcome to India - a land of exotic animals and exotic warfare; monkeys stage dusty dust-ups, blackbucks wage open war on the open plains, and peacock dandies swing switchblades: these are colorful battles worthy of a vibrant land.

When a tiny piece of trash ruins a raccoon's life, Doctor Jessica cuts it free, but Hope faces tough decisions about its future; a volunteer plunges in to save an injured goose.

When a tiny fawn gets hit by a car, Doctor Jessica must splint its broken leg or it will never return to the wild; a mother porcupine arrives with baby in tow and both need life-saving attention for a parasitic infection.

Just as Hope is scrambling to get ready for her busiest day of the year, the government decides to seize the bear cub Hope's worked so hard to save.

When a Category 2 hurricane slams straight into the rehab, Hope and her team struggle to protect their patients in the middle of the raging storm.

A photographer snaps into action to save a turkey vulture's life after it gets trapped under a seal carcass.

When a worldwide pandemic cripples the rehab, wildlife emergencies keep coming in: a bobcat that's been shot, and a massive adult seal; Hope's down to a skeleton crew as critical team members go into quarantine.

A veterinarian and his team encounter dangerous challenges as they care for endangered animals at a hospital in the Guatemalan jungle.

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

Taking a journey through the eyes of catfish, ocelots, and other native creatures, celebrating the Lone Star State's landscapes and wildlife, and looking at how crucial conservation efforts can save Texas' unique habitats.

In a South African sanctuary, Liz meets a nine-year-old lion called Ricci whose teeth are in such rough shape he can't eat; specially trained vets use unique tools and slightly more anaesthetic than estimated on the wakeful patient.

In Sierra Leone, a young chimpanzee deals with a potentially cancerous growth on her abdomen; wildlife vets deliver a diagnosis then get a fright mid-surgery.

A majestic Asian elephant who survived a catastrophic flood at his zoo in Tbilisi, Georgia has a badly infected tusk; surgeons race to remove the tusk and save the gentle giant's life.

Tending to a spring rush and a rude roo.

Aiding a pelican in peril and a mad koala.

Soothing a bitten koala and itchy possums.

"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.

Hope puts everything on the line to save an orphaned black bear cub; two bobcats are ready for release, but they won't go easy.

Rescuing baboons and a wounded pangolin.

In Sierra Leone, a young chimpanzee deals with a potentially cancerous growth on her abdomen; wildlife vets deliver a diagnosis then get a fright mid-surgery.

The Bahamas are home to migratory birds, green turtles, and rock iguanas.

Massive elephant seals go nose to nose to win the title of beach master; giant petrels earn the nickname "murderous garbagemen"; a female humpback goes to extremes to protect her calf from amorous males.

Canada, where summer is short and time is tight, any time is the right time to fight; the mighty North provides the setting for bison, bald eagles and polar bears to wage some of the most heavy-duty fighting in the animal kingdom.

A bald eagle needs Hope's help; a small but lethal patient keep the entire staff on their toes.

The Bahamas are home to migratory birds, green turtles, and rock iguanas.

Massive elephant seals go nose to nose to win the title of beach master; giant petrels earn the nickname "murderous garbagemen"; a female humpback goes to extremes to protect her calf from amorous males.

Canada, where summer is short and time is tight, any time is the right time to fight; the mighty North provides the setting for bison, bald eagles and polar bears to wage some of the most heavy-duty fighting in the animal kingdom.

Elephants in the Lilayi Elephant Nursery and Kafue National Park.

The secrets of Kinda baboons, a newly-identified species that's still little understood.

Madonna is the first Kinda baboon to be studied from birth to adulthood, and, now, she is looking for a mate.

A team of dedicated conservationists go to extraordinary lengths to keep the rare black rhino safe from poachers.

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.

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.

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.

Get to know Winston, a tiny abandoned cub who imprints on Judy as she nurses him 24-7.

Celebrate as a newly arrived trio of sisters teaches Winston about friendship.

Giles cares for a sun bear cub while building a rescue center in Laos.

Giles helps two moon bear cubs and is shocked with news at the sanctuary.

A veterinarian and his team encounter dangerous challenges as they care for endangered animals at a hospital in the Guatemalan jungle.

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

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

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

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.

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.

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

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

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.

Lake Superior has the longest undeveloped shoreline of Canada's Great lakes.

Learning to fight dirty with a guanaco, head-butting a fellow iguana to claim a piece of prime territory, and meeting a hermit crab who forcibly evicts a tenant from its shell.

With real-life dueling dragons, giant sumo-wrestling beetles, street-fighting monkeys, and sea turtles that play king of the hill - on top of another sea turtle, Southeast Asia boasts a wide range of wildlife warriors.

A hunt for a misunderstood coyote; the ravens have worn out their welcome and need a new home.

Lake Superior has the longest undeveloped shoreline of Canada's Great lakes.

Learning to fight dirty with a guanaco, head-butting a fellow iguana to claim a piece of prime territory, and meeting a hermit crab who forcibly evicts a tenant from its shell.

With real-life dueling dragons, giant sumo-wrestling beetles, street-fighting monkeys, and sea turtles that play king of the hill - on top of another sea turtle, Southeast Asia boasts a wide range of wildlife warriors.

Rescuing baboons and a wounded pangolin.

An infection slows a duiker's release.

Seeing the release of pythons and monkeys.

Dr. Amanda removes a sable antelope's tracking collar and the animal-care team help a flea-riddled baby vervet monkey find a new mom, free two orphaned serval cats, and follow 20 yellow baboons into their new enclosure.

The team faces a heartbreaking loss.

Waving goodbye to beloved Sheila the Croc.

The team saves a massive sea lion caught in a plastic noose; a visit to the Rescue Centre where a harbor seal pup may lose its eyesight; a baby sea otter needs a risky but life-saving surgery.

Battling wind and waves to find a sea lion trapped in a plastic ring; visiting a rescue centre, where over 80 orphan seals must be fed several times a day to prepare for release into the wild; an Amazonian duck gets a miraculous operation.

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.

Diving into a busy summer at the RSPCA Wildlife Hospital, where vet Emily takes the pressure off a gassy koala mum; the team fight a wave of lorikeet paralysis syndrome and vet Karina uses a teddy bear to rescue a flying fox pup.

Join vets Emily and Martine in the OR, where Dolly the koala's spaying surgery takes a scary turn; aid a run-over echidna with vet Nigel; see rescue officer Chantelle's slick fix for a snared lizard; probe a possible birdnapping with vet Karina.

Head into surgery with Mara the koala, who needs a life-saving tooth operation; assess an injured sugar glider with vet Tim; rescue officer Elise pulls a flying fox out of a gutter; see nurse Bree's clutch of python eggs hatch.

Rescue officers use a technique called flagging to nab a koala with dangerously inflamed eyes; vet Tim soothes burned possum feet; vet Karina examines a half-drowned platypus before referring him to a specialist.

Juggle the demands of caring for sick koala joeys with vet Claire; see what it takes to save a squirrel glider caught in barbed wire; take care of an exhausted owl; get a big surprise when vet Tim X-rays a turtle that was struck by a car.

Follow vet Tim as he races to save rescued koala Ashley; then meet a flying fox with an extra digit who needs some TLC from vet Martine; calculate the odds for a run-over kangaroo joey with vet Emily; then celebrate the release of 50 lorikeets.

Valentino, Yutris and the rest of group two have fun as they visit group three's flooded classroom; three quarantine infants get the results of their TB tests; the residents of Bangamat Island do not welcome newcomers leading to a confrontation.

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.

In the heart of the Atlantic, a team looks at devil rays, fish with "wings" nearly 13 feet across; in northeast Turkey, cameras are carried by brown bears and in southern France, on-board cameras look at guard dogs protecting sheep flocks.

Watch the cannibalistic Portia spider devour the competition; uncover the bloodthirsty side of cuddly koalas; catch an epic giraffe battle.

The Niagara Escarpment Biosphere Reserve begins with the mighty Niagara Falls and winds its way through deep valleys and caves.

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.

Allison brings her work home; some orphans try to make a break for it while Allison and Hope are away.

The Niagara Escarpment Biosphere Reserve begins with the mighty Niagara Falls and winds its way through deep valleys and caves.

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.

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

Taking a journey through the eyes of catfish, ocelots, and other native creatures, celebrating the Lone Star State's landscapes and wildlife, and looking at how crucial conservation efforts can save Texas' unique habitats.

Tackling pet hoarding and a deadly snake.

Rounding up ducklings and helping a lost koala.

Bailing out koala joeys and a grounded owl.

Bone up on outdoor skills as Winston and the X girls move into their new fresh-air enclosure; witness Yasmine and Yara's kindergarten power struggle.

Navigate rain, new climbing structures, and a first meeting of the summer cubs.

Giles cares for a sun bear cub while building a rescue center in Laos.

Giles helps two moon bear cubs and is shocked with news at the sanctuary.

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

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

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.

In a South African sanctuary, Liz meets a nine-year-old lion called Ricci whose teeth are in such rough shape he can't eat; specially trained vets use unique tools and slightly more anaesthetic than estimated on the wakeful patient.

In Sierra Leone, a young chimpanzee deals with a potentially cancerous growth on her abdomen; wildlife vets deliver a diagnosis then get a fright mid-surgery.

A majestic Asian elephant who survived a catastrophic flood at his zoo in Tbilisi, Georgia has a badly infected tusk; surgeons race to remove the tusk and save the gentle giant's life.

Moving day arrives for the nursery school kids; Beni gets a beating from a bully; the socialization cage has a new queen; dominant male Pujon is still on a time-out after attacking Alba, but he's allowed a second chance to bond with his rival.

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.

Diving into a busy summer at the RSPCA Wildlife Hospital, where vet Emily takes the pressure off a gassy koala mum; the team fight a wave of lorikeet paralysis syndrome and vet Karina uses a teddy bear to rescue a flying fox pup.

Join vets Emily and Martine in the OR, where Dolly the koala's spaying surgery takes a scary turn; aid a run-over echidna with vet Nigel; see rescue officer Chantelle's slick fix for a snared lizard; probe a possible birdnapping with vet Karina.

Elk and moose live beside bears and wolves where the mountains cross international borders.

Wildebeest battle for herd hierarchy, meerkats live the thug life, floppy fish fight it out on land and locusts give up their vegetarian ways in a frenzy of cannibalism; it all happens on the wild and wide-open landscape of South Africa.

The latitudes south of the Sahara offer vastly different battlegrounds for a wide range of warriors; male giraffes swing their heads like wrecking balls, zebras boast the most powerful kick in the animal kingdom, and chimpanzee warfare is familiar.

The open house is bigger than ever, which brings about more challenges.

Elk and moose live beside bears and wolves where the mountains cross international borders.

Wildebeest battle for herd hierarchy, meerkats live the thug life, floppy fish fight it out on land and locusts give up their vegetarian ways in a frenzy of cannibalism; it all happens on the wild and wide-open landscape of South Africa.

The latitudes south of the Sahara offer vastly different battlegrounds for a wide range of warriors; male giraffes swing their heads like wrecking balls, zebras boast the most powerful kick in the animal kingdom, and chimpanzee warfare is familiar.

Beni faces a day of reckoning as all the forest school students are held back for a weigh-in; Alba is back in isolation after being diagnosed with typhoid.

Elk and moose live beside bears and wolves where the mountains cross international borders.

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

The vast flood plains of the Chobe river.

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

Human influence and effect on the beaches of California.

Celebrate as a newly arrived trio of sisters teaches Winston about friendship.

Diving into a busy summer at the RSPCA Wildlife Hospital, where vet Emily takes the pressure off a gassy koala mum; the team fight a wave of lorikeet paralysis syndrome and vet Karina uses a teddy bear to rescue a flying fox pup.

Join vets Emily and Martine in the OR, where Dolly the koala's spaying surgery takes a scary turn; aid a run-over echidna with vet Nigel; see rescue officer Chantelle's slick fix for a snared lizard; probe a possible birdnapping with vet Karina.

Skin has evolved to enable animals to move through a range of habitats.

Find good magic, and visit the dark side of the world's tropical forests.

Wildlife and the environment.

Skin has evolved to enable animals to move through a range of habitats.

Find good magic, and visit the dark side of the world's tropical forests.

Wildlife and the environment.

Beni faces a day of reckoning as all the forest school students are held back for a weigh-in; Alba is back in isolation after being diagnosed with typhoid.

Skin has evolved to enable animals to move through a range of habitats.

Find good magic, and visit the dark side of the world's tropical forests.

Wildlife and the environment.

Animals living in the harsh conditions of the mountain peaks.

Steering clear of alphas, whose horns, claws and other protective gear keep them ready for battle, no matter what the weather dishes out; examining killer Highland cow horns, plucky mallard bills, razor-edged wolverine claws, and more.

A male brown hare throws punches at his beloved; admiring a sandhill crane dance battle; ibexes butt heads (literally) during mating season; why leopards are stealth masters.

Never seen before footage of Hope's greatest stories.

Animals living in the harsh conditions of the mountain peaks.

Steering clear of alphas, whose horns, claws and other protective gear keep them ready for battle, no matter what the weather dishes out; examining killer Highland cow horns, plucky mallard bills, razor-edged wolverine claws, and more.

A male brown hare throws punches at his beloved; admiring a sandhill crane dance battle; ibexes butt heads (literally) during mating season; why leopards are stealth masters.

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.

Animals living in the harsh conditions of the mountain peaks.

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.

Skin has evolved to enable animals to move through a range of habitats.

Find good magic, and visit the dark side of the world's tropical forests.

Wildlife and the environment.

Celebrate as a newly arrived trio of sisters teaches Winston about friendship.

The ruthless realm of some of the stealthiest and cleverest insects in the animal kingdom - from praying mantises and aquatic insects to dragonflies.

The crucial ecological roles that beetles play in nearly every environment, and why they are often regarded "the most important species on the planet.".

Celebrate as a newly arrived trio of sisters teaches Winston about friendship.

The ruthless realm of some of the stealthiest and cleverest insects in the animal kingdom - from praying mantises and aquatic insects to dragonflies.

The crucial ecological roles that beetles play in nearly every environment, and why they are often regarded "the most important species on the planet.".

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.

Celebrate as a newly arrived trio of sisters teaches Winston about friendship.

The ruthless realm of some of the stealthiest and cleverest insects in the animal kingdom - from praying mantises and aquatic insects to dragonflies.

The crucial ecological roles that beetles play in nearly every environment, and why they are often regarded "the most important species on the planet.".

The waterways of the Rocky Mountains are home to many creatures.

Meeting alphas who get by with a little help from their friends; the inescapable gang mentality of mating male dolphins; ant colonies' unique scents; female geladas always get the last word; wolves hunt family-style.

Celebrating small but mighty animal warriors armed with sheaves of scary weapons; admiring nutrias' stink bombs; honey badgers' needlelike choppers; black-tailed gulls' razor-sharp beaks; the killer talons on dive-bombing peregrine falcons.

A huge storm sweeps an unusual patient into Hope for Wildlife, and Hope tries to return him to his home.

The waterways of the Rocky Mountains are home to many creatures.

Meeting alphas who get by with a little help from their friends; the inescapable gang mentality of mating male dolphins; ant colonies' unique scents; female geladas always get the last word; wolves hunt family-style.

Celebrating small but mighty animal warriors armed with sheaves of scary weapons; admiring nutrias' stink bombs; honey badgers' needlelike choppers; black-tailed gulls' razor-sharp beaks; the killer talons on dive-bombing peregrine falcons.

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

The waterways of the Rocky Mountains are home to many creatures.

Two black rhinos in Zambia are at the core of a relocation mission that's part of a grand plan to save the species.

In Kafue National Park, a team of biologists and vets from the Zambian Carnivore Programme, races to save and protect Africa's apex predators.

Eyes are so vital they've evolved independently almost one hundred times, from the incredibly simple to the bafflingly complex; whether an animal has just two or hundreds of eyes, they're adapted perfectly for its particular suite of needs.

Compared to some animals, human senses are sorely limited; beyond our scope of perception, there is an invisible world that humans know little about, but that some animals rely on in order to survive.

Celebrate as a newly arrived trio of sisters teaches Winston about friendship.

The ruthless realm of some of the stealthiest and cleverest insects in the animal kingdom - from praying mantises and aquatic insects to dragonflies.

The crucial ecological roles that beetles play in nearly every environment, and why they are often regarded "the most important species on the planet.".

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.

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

May brings violent tornados to North America and the life-giving monsoon to India; the dry season ends in southern Africa, claiming victims among elephants.

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.

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

May brings violent tornados to North America and the life-giving monsoon to India; the dry season ends in southern Africa, claiming victims among elephants.

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

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.

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

May brings violent tornados to North America and the life-giving monsoon to India; the dry season ends in southern Africa, claiming victims among elephants.

Wildlife in the forest depends on a delicate balance of growth and destruction.

Elands lock corkscrew horns; storks rattle sabre-shaped beaks; rhinos scare the competition with massive 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.

Hope cares for the first two beavers to arrive at the rehab centre and learns the fate of her most famous patient.

Wildlife in the forest depends on a delicate balance of growth and destruction.

Elands lock corkscrew horns; storks rattle sabre-shaped beaks; rhinos scare the competition with massive 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.

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.

Wildlife in the forest depends on a delicate balance of growth and destruction.

Recent research into bird-like qualities of dinosaurs.

Animals that have evolved unusual abilities.

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

Bizarre birds have various adaptations.

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.

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.

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