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

Today, more than half of the world's primates are under threat of extinction; meeting the scientists making discoveries about this animal family, and the people safeguarding their future.

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

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

Today, more than half of the world's primates are under threat of extinction; meeting the scientists making discoveries about this animal family, and the people safeguarding their future.

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

Clear waters, deep reefs, and dangerous caves.

North American birds of prey can catch a wide range of animals in different environments.

Predators evolved to hunt insects have a plentiful and easy to consume food source.

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

Clear waters, deep reefs, and dangerous caves.

North American birds of prey can catch a wide range of animals in different environments.

Predators evolved to hunt insects have a plentiful and easy to consume food source.

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

In South Dakota, the rugged beauty of the Badlands is the backdrop for an assortment of animals, including the American bison, the black-tailed prairie dog and the burrowing owl; prairie dog pups are threatened by badgers, golden eagles and coyotes.

Entertainer Cher and a team of vets, trainers, and more lead a large-scale effort to move a bull elephant from a rundown zoo to a faraway wildlife sanctuary.

Some of the most amazing hippo behavior happens after dark.

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.

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

Today, more than half of the world's primates are under threat of extinction; meeting the scientists making discoveries about this animal family, and the people safeguarding their future.

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

A look at the astonishing wildlife, landscapes and people of the Nile, the world's longest river; from elephants and leopards, to extreme kayakers and ancient wonders, its great length is a lifeline for astonishing wildlife and cultures.

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.

A look at the astonishing wildlife, landscapes and people of the Nile, the world's longest river; from elephants and leopards, to extreme kayakers and ancient wonders, its great length is a lifeline for astonishing wildlife and cultures.

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.

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.

A look at the astonishing wildlife, landscapes and people of the Nile, the world's longest river; from elephants and leopards, to extreme kayakers and ancient wonders, its great length is a lifeline for astonishing wildlife and cultures.

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.

Exploring the wild blue caribbean waters of cozumel, from the paso del cedral coral reef to the world's longest subterranean underwater cave system.

Cold-blooded predators are brutal and cunning killers.

Many animals use mimicry, poison, and other methods to avoid predators.

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

Exploring the wild blue caribbean waters of cozumel, from the paso del cedral coral reef to the world's longest subterranean underwater cave system.

Cold-blooded predators are brutal and cunning killers.

Many animals use mimicry, poison, and other methods to avoid predators.

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

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

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

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

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

The creatures of the wetlands.

A look at the astonishing wildlife, landscapes and people of the Nile, the world's longest river; from elephants and leopards, to extreme kayakers and ancient wonders, its great length is a lifeline for astonishing wildlife and cultures.

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.

The story of Galapagos and the many challenges of continuing the circle of life in this wild and rugged outpost.

The most elemental and pure survival is based on eating; if an animal is not healthy, strong, and agile, they cannot compete to mate, defend their family from any threat, nor will they be able to achieve good status in their clan.

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 worlds most aggressive bird, harnessing cold aggression to protect its patch of sky.

The story of Galapagos and the many challenges of continuing the circle of life in this wild and rugged outpost.

The most elemental and pure survival is based on eating; if an animal is not healthy, strong, and agile, they cannot compete to mate, defend their family from any threat, nor will they be able to achieve good status in their clan.

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 worlds most aggressive bird, harnessing cold aggression to protect its patch of sky.

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

The story of Galapagos and the many challenges of continuing the circle of life in this wild and rugged outpost.

The most elemental and pure survival is based on eating; if an animal is not healthy, strong, and agile, they cannot compete to mate, defend their family from any threat, nor will they be able to achieve good status in their clan.

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 worlds most aggressive bird, harnessing cold aggression to protect its patch of sky.

Home to the world's second-largest barrier reef, Roatan is one of the world's top dive spots - known for its rare black corals, low-lying nurse sharks and fearsome-looking barracuda.

Underwater creatures have evolved for various niches and environments.

The moose and wolves of Lake Superior battle.

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

Home to the world's second-largest barrier reef, Roatan is one of the world's top dive spots - known for its rare black corals, low-lying nurse sharks and fearsome-looking barracuda.

Underwater creatures have evolved for various niches and environments.

The moose and wolves of Lake Superior battle.

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

South Africa's Drakensberg is home to climatic and ecological gradients.

Towering mountains line Lake Manyara National Park.

Grass-grazing geladas, elusive wolves and horned walia ibex reside in the highest peaks in Africa.

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.

The story of Galapagos and the many challenges of continuing the circle of life in this wild and rugged outpost.

The most elemental and pure survival is based on eating; if an animal is not healthy, strong, and agile, they cannot compete to mate, defend their family from any threat, nor will they be able to achieve good status in their clan.

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 worlds most aggressive bird, harnessing cold aggression to protect its patch of sky.

Boning up on desert eats; flirting with lions; witnessing an elephant babysitters' club.

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.

Explore the partnership between clownfish and anemones; watch oxpeckers keep savannah residents healthy; review the agreements of dung beetles and pitcher plants.

Boning up on desert eats; flirting with lions; witnessing an elephant babysitters' club.

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.

Explore the partnership between clownfish and anemones; watch oxpeckers keep savannah residents healthy; review the agreements of dung beetles and pitcher plants.

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.

Boning up on desert eats; flirting with lions; witnessing an elephant babysitters' club.

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.

Explore the partnership between clownfish and anemones; watch oxpeckers keep savannah residents healthy; review the agreements of dung beetles and pitcher plants.

Cabo Pulmo is the site of an extraordinary marine recovery.

The Asian carp, an invasive species, travels through North American waters, eating, breeding and decimating native fish populations.

Researchers continue to fight for the survival of the Lake Erie Watersnake, a species on the brink of extinction; a new source of food could mean the snakes have a future after all, so long as the lake's algae blooms cooperate.

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

Cabo Pulmo is the site of an extraordinary marine recovery.

The Asian carp, an invasive species, travels through North American waters, eating, breeding and decimating native fish populations.

Researchers continue to fight for the survival of the Lake Erie Watersnake, a species on the brink of extinction; a new source of food could mean the snakes have a future after all, so long as the lake's algae blooms cooperate.

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

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.

"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.

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.

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.

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.

Boning up on desert eats; flirting with lions; witnessing an elephant babysitters' club.

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.

Explore the partnership between clownfish and anemones; watch oxpeckers keep savannah residents healthy; review the agreements of dung beetles and pitcher plants.

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.

Coming full circle on this wild year on Earth.

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.

Coming full circle on this wild year on Earth.

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.

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.

Coming full circle on this wild year on Earth.

The island nation of Palau created the first shark sanctuary and the largest marine sanctuary.

Some people are fighting to save the endangered massasauga rattlesnake, which was vilified for years.

The peregrine falcon population has been rising in numbers.

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

The island nation of Palau created the first shark sanctuary and the largest marine sanctuary.

Some people are fighting to save the endangered massasauga rattlesnake, which was vilified for years.

The peregrine falcon population has been rising in numbers.

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

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

Bizarre birds have various adaptations.

Some survival adaptations make creatures ugly.

The survival adaptations of creepy crawlers.

Strange creatures that look fabricated.

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

Recent research into bird-like qualities of dinosaurs.

Animals have evolved different chemical weapons, from paralyzing venoms to necrotic toxins.

Animals that have evolved unusual abilities.

Bizarre creatures of the sea.

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.

Coming full circle on this wild year on Earth.

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.

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

Tending to a spring rush and a rude roo.

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.

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

Tending to a spring rush and a rude roo.

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.

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.

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

Tending to a spring rush and a rude roo.

Palau is home to large manta rays, WWII wrecks, and a coral reef.

Animals that inhabit waters controlled by dams are put in danger.

Flying squirrels leaping through the air.

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

Palau is home to large manta rays, WWII wrecks, and a coral reef.

Animals that inhabit waters controlled by dams are put in danger.

Flying squirrels leaping through the air.

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

Chris Packham looks at social intelligence in the animal kingdom, and finds out why it is that, for animals, being together means being clever; he looks at how lions hunt in teams, in which each holds a very specific position.

Chris Packham reveals the intelligent cons and deceitful behavior that animals use to survive and prosper in the game of life, from disguising themselves to outwit predators, to kidnapping babies to save their own offspring.

Chris discovers the cleverest animal travellers and how they find their way, from deer with mental maps, blue whales' planning routes, and dung beetles navigating by the stars.

Discovering what it is like to grow up in the animal kingdom.

Discovering the importance of having allies in the animal kingdom and what they must do to be accepted in a group.

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.

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

Tending to a spring rush and a rude roo.

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.

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

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.

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.

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

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.

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.

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.

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

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.

Raja Ampat in the Indonesian archipelago is home to diverse marine life, including manta rays.

Sometimes animals get a second chance.

Behind the scenes at Kenya's private game reserve.

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

Raja Ampat in the Indonesian archipelago is home to diverse marine life, including manta rays.

Sometimes animals get a second chance.

Behind the scenes at Kenya's private game reserve.

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

Hammerheads, Galapagos 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.

Humpbacks and whale sharks visit the coast of Mozambique.

Animals that have change little in millions of years, sometimes called living fossils.

Underwater creatures have evolved for various niches and environments.

Sharks are some of the oldest predators still living.

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.

A shark scientist explores the mysteries of the hammerhead shark, using technology in the form of a remote-controlled stingray to learn more about the huge deepwater predators off the small island of Bimini.

The oceans have hidden the true depth of their hunters' inventiveness. But now, wildlife photographers below and above the water's surface are capturing images that show off their remarkable prowess. Discover their secrets as we travel the world.

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

Introducing a cast of charismatic animals to reveal the remarkable strategies they use to survive, and even thrive, in winter - for animals this is the toughest time of year, and preparations start early.

Gangs battle for dominance, their lives a constant struggle; locusts swarm, stripping landscapes bare; the coconut octopus ambushes prey, a master of deception; nature reveals its raw power, where only the strongest survive.

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

Introducing a cast of charismatic animals to reveal the remarkable strategies they use to survive, and even thrive, in winter - for animals this is the toughest time of year, and preparations start early.

Gangs battle for dominance, their lives a constant struggle; locusts swarm, stripping landscapes bare; the coconut octopus ambushes prey, a master of deception; nature reveals its raw power, where only the strongest survive.

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.

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

Introducing a cast of charismatic animals to reveal the remarkable strategies they use to survive, and even thrive, in winter - for animals this is the toughest time of year, and preparations start early.

Gangs battle for dominance, their lives a constant struggle; locusts swarm, stripping landscapes bare; the coconut octopus ambushes prey, a master of deception; nature reveals its raw power, where only the strongest survive.

The Indonesian archipelago lies has the highest number of coral and fish species on earth.

An endangered species of hartebeest is moved to Ol Pejeta so its land can be resettled by refugees.

Two white rhinos are moved to Ol Pejeta from a nearby ranch after it's discovered that poachers had been watching the animals.

An old patient gets a second chance; a pregnant porcupine; Hope has surgery.

The Indonesian archipelago lies has the highest number of coral and fish species on earth.

An endangered species of hartebeest is moved to Ol Pejeta so its land can be resettled by refugees.

Two white rhinos are moved to Ol Pejeta from a nearby ranch after it's discovered that poachers had been watching the animals.

An old patient gets a second chance; a pregnant porcupine; Hope has surgery.

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

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

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

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

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.

Go on a risky tagging mission and get a 360-degree view of feeding hot spots.

Hunt for signs of mating sharks and get a peek at their hidden pupping grounds.

Take a deep dive to find out what bull sharks and great whites do after sunset.

The Mississippi, from frozen waterfalls to time-traveling barges, from busy beavers to mysterious swamps, connects a continent like no other river. At the end of its 3,500-mile journey, it creates one of the biggest river deltas on the planet.

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

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

The Mississippi, from frozen waterfalls to time-traveling barges, from busy beavers to mysterious swamps, connects a continent like no other river. At the end of its 3,500-mile journey, it creates one of the biggest river deltas on the planet.

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

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

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

The Mississippi, from frozen waterfalls to time-traveling barges, from busy beavers to mysterious swamps, connects a continent like no other river. At the end of its 3,500-mile journey, it creates one of the biggest river deltas on the planet.

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

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

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

An order is given to de-tusk three elephants; removing a collar from a blind elephant.

Chimpanzees that have become captive animals; reintroduction of the colubus monkey to the Ewaso river area.

Hope visits two long-term patients; tough choices; a unique creature joins the rehab.

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

An order is given to de-tusk three elephants; removing a collar from a blind elephant.

Chimpanzees that have become captive animals; reintroduction of the colubus monkey to the Ewaso river area.

Hope visits two long-term patients; tough choices; a unique creature joins the rehab.

Seven daredevil filmmakers try to capture the ultimate shark shot; see the preparation and planning that goes into achieving incredible footage.

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

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

The mythology of Ixchel, a protective mother figure.

Hawaiian beaches are created and altered by active volcanoes.

The Mississippi, from frozen waterfalls to time-traveling barges, from busy beavers to mysterious swamps, connects a continent like no other river. At the end of its 3,500-mile journey, it creates one of the biggest river deltas on the planet.

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

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

A professor develops a relationship with an octopus when he invites it to live in his home; the octopus, called Heidi, unravels puzzles, recognises individual humans and even watches TV with the family.

The love rivalry shakes every fiber of the body as hormones invade the blood, and some of the most overwhelming spectacles on the planet are produced; the language of love and the fight for reproduction stimulate the most diverse behaviors.

Following two cheetah mothers - Savannah and her four cubs, in the Tswalu Kalahari Reserve, and Chili and her five kittens in the Great Karoo Wilderness - as they navigate a harsh environment, dangerous wildlife and dwindling prey.

A professor develops a relationship with an octopus when he invites it to live in his home; the octopus, called Heidi, unravels puzzles, recognises individual humans and even watches TV with the family.

The love rivalry shakes every fiber of the body as hormones invade the blood, and some of the most overwhelming spectacles on the planet are produced; the language of love and the fight for reproduction stimulate the most diverse behaviors.

Following two cheetah mothers - Savannah and her four cubs, in the Tswalu Kalahari Reserve, and Chili and her five kittens in the Great Karoo Wilderness - as they navigate a harsh environment, dangerous wildlife and dwindling prey.

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.

A professor develops a relationship with an octopus when he invites it to live in his home; the octopus, called Heidi, unravels puzzles, recognises individual humans and even watches TV with the family.

The love rivalry shakes every fiber of the body as hormones invade the blood, and some of the most overwhelming spectacles on the planet are produced; the language of love and the fight for reproduction stimulate the most diverse behaviors.

Following two cheetah mothers - Savannah and her four cubs, in the Tswalu Kalahari Reserve, and Chili and her five kittens in the Great Karoo Wilderness - as they navigate a harsh environment, dangerous wildlife and dwindling prey.

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

Ol Pejeta Conservancy is Kenya's largest and busiest private game reserve, a vast reserve that covers 85.000 acres and is home to over 15.000 animals, including some of Africa's rarest and most endangered species.

The team struggles with some thirsty creatures after a drought.

The flood of fawns arrives; a pigeon gets some much needed relief; an animal is stuck in a car.

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

Ol Pejeta Conservancy is Kenya's largest and busiest private game reserve, a vast reserve that covers 85.000 acres and is home to over 15.000 animals, including some of Africa's rarest and most endangered species.

The team struggles with some thirsty creatures after a drought.

The flood of fawns arrives; a pigeon gets some much needed relief; an animal is stuck in a car.

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

The Kogelberg Biosphere Reserve.

The Addo Elephant National Park in South Africa is home to more than 450 elephants and mammals and was created in response to the decreased number of elephants.

Harsh storms, wildfires, and heavy seas define Table Mountain National Park; how its native animals and plants work together on the parched hillsides and windswept cliffs to form symbiotic partnerships that ensure mutual survival.

iSimangaliso Wetland Park's unique mosaic of ecosystems; grasslands, forests, swamps, lakes, beaches, and coral reefs, and the incredibly diverse animal life its varied climatic zones support.

A professor develops a relationship with an octopus when he invites it to live in his home; the octopus, called Heidi, unravels puzzles, recognises individual humans and even watches TV with the family.

The love rivalry shakes every fiber of the body as hormones invade the blood, and some of the most overwhelming spectacles on the planet are produced; the language of love and the fight for reproduction stimulate the most diverse behaviors.

Following two cheetah mothers - Savannah and her four cubs, in the Tswalu Kalahari Reserve, and Chili and her five kittens in the Great Karoo Wilderness - as they navigate a harsh environment, dangerous wildlife and dwindling prey.