Aquatic ecologist Dr. Zeb Hogan teams up with kayaking expert Trip Jennings and a team of Brazilian scientists to tackle the Rio Roosevelt in western Brazil. They'll battle the river's deadly rapids in an effort to complete a comprehensive survey of one of the Amazon's most remote jungle rivers, and discover what monster fish are lurking beneath the surface of this 400 mile-long river. Pressures like logging and dams are believed to be destroying critical fish habitat throughout the region. His journey is an important look at what might be lost if these pressures reach the pristine Rio Roosevelt.

A snake City Compilation with the best of all the baby snakes.

Death By Viper. Cold winters have been keeping Florida's Burmese python population in check, so the hunters head off to tackle Costa Rica's deadliest snakes.

Lizards Of Oz. On a road trip across Australia, the guys try to outwit a speedy Australian sand monitor and find a dangerous king brown snake.

Rattlesnake Roundup. Back home, the team seek one of Florida's most abundant rattlesnakes. They collect a bucket full of the tiny but aggressive dusky pygmy.

Which snake is the most dangerous in the Americas? We'll tally them up and tell you? and it's not what you think!

Death By Viper. Cold winters have been keeping Florida's Burmese python population in check, so the hunters head off to tackle Costa Rica's deadliest snakes.

A snake City Compilation with the best of all the baby snakes.

Journey with JT Reynolds, Death Valley's larger-than-life superintendent, and meet the scientists who are working to protect this wild place as the mercury rises.

Pigs can detect smells buried two stories underground and a dog's nose can take you to court.

The mantis shrimp has a punch as strong as a bullet and the lion's roar can be heard by other lions 30 miles away.

Crows are as smart as dolphins and can talk like parrots. Wolves can hunt for three days straight in a territory the size of Delaware.

The story of chimpanzees is told through the dynastic struggles of a chimp tribe - the embattled leader, the scheming challenger; wise old moms, and clinging infants; playful siblings and jealous ones. Fascinating anecdotes reveal struggling orphans and unexpectedly powerful mothers.

She leads the formidable Sausage Tree Pride, an ensemble of buffalo-slaying huntresses. That is, until the migration crosses their prime domain and they demonstrate ultimate adaptability and switch prey species. But the pride has been compromised after a split-away group left their ranks and now she must muster her troupe to excel at motherhood while male coalitions complicate dynamics all around them.

A forensic look at how lions hunt large prey like buffalo and zebra, offering new perspectives on the way these predators stalk, chase and kill. A lone lioness relies on cunning to feed her newborn cubs, whilst a fearless pride tries to take down the biggest prey of all, a giant African elephant.

The story of chimpanzees is told through the dynastic struggles of a chimp tribe - the embattled leader, the scheming challenger; wise old moms, and clinging infants; playful siblings and jealous ones. Fascinating anecdotes reveal struggling orphans and unexpectedly powerful mothers.

She leads the formidable Sausage Tree Pride, an ensemble of buffalo-slaying huntresses. That is, until the migration crosses their prime domain and they demonstrate ultimate adaptability and switch prey species. But the pride has been compromised after a split-away group left their ranks and now she must muster her troupe to excel at motherhood while male coalitions complicate dynamics all around them.

Identified by her burnt orange gaze, she leads a pride of five closely-related lionesses and their six offspring. They overcome every challenge as a precision unit: the gauntlet of the buffalo hunt or the upheaval of new males that could either decimate the prides ranks or offer her the chance to finally mother cubs. But desperate drought and crippling disease push the sisterhood to the absolute brink of survival.

She overthrew the preceding ruler of North Clan in an unprecedented take-over, fighting her way up from a lowly rank to matriarch. She is both a ruthless battle commander, leading her clan in warfare against rivals and adversaries like lion, and devoted guardian to her clan and parent to her offspring.

A forensic look at how lions hunt large prey like buffalo and zebra, offering new perspectives on the way these predators stalk, chase and kill. A lone lioness relies on cunning to feed her newborn cubs, whilst a fearless pride tries to take down the biggest prey of all, a giant African elephant.

A forensic look at how cheetahs hunt their prey, offering new perspectives on the tactics employed by these expert predators when stalking, chasing and bringing down antelope and wildebeest. Following a young cheetah mother over 18-months as she teaches her three cubs the secrets of the hunt.

A forensic look at how Nile crocodiles hunt, offering new perspectives on the patient and precise tactics they use when ambushing migratory herds of wildebeest and zebra that pass through their territories. A male crocodile must target large prey in a bid to survive the harshest time of the year.

The story of Titus, greatest of all silverback kings, known to science, as he battles to retain his crown. At 35 years-old, Titus may be reaching the end of his reign. His own son, Rano, will do anything unseat his father. What would happen if he were deposed?

The story of chimpanzees is told through the dynastic struggles of a chimp tribe - the embattled leader, the scheming challenger; wise old moms, and clinging infants; playful siblings and jealous ones. Fascinating anecdotes reveal struggling orphans and unexpectedly powerful mothers.

After working hard throughout her pregnancy, it's just about time for Dr. Emily's maternity leave - but not before Dr. Pol and crew treat a slew of young animals, including a stray kitten, a clumsy baby alpaca, and a pair of screaming goat kids.

This Thanksgiving the birds are calling the shots at Pol Veterinary Services when Charles adopts three turkeys that are on the run. Then when Gail and Lynn Wernette find a pair of wandering Great Danes near their home, they bring them to the clinic. Thin and in poor health, these dogs are in need of some serious TLC, but Dr. Pol and Diane have a full house. The hunt is on for homes for these gentle giants. Later, it's all hands on deck when Capone, a horse with a nasty cut on its hoof, arrives in the clinic parking lot. It's an uphill battle as Dr. Pol wrestles with Capone, and calls for help from his owners to get the horse treated. It wouldn't be Thanksgiving without a meal shared with family and friends and everyone from the clinic gather for a traditional Amish Thanksgiving meal, taking a break from the business of work to enjoy one another's company.

Amazon Anaconda. The team go off-road in Peru, searching for the mighty green anaconda _ and meet a massive bushmaster viper on the way.

Death By Viper. Cold winters have been keeping Florida's Burmese python population in check, so the hunters head off to tackle Costa Rica's deadliest snakes.

The story of chimpanzees is told through the dynastic struggles of a chimp tribe - the embattled leader, the scheming challenger; wise old moms, and clinging infants; playful siblings and jealous ones. Fascinating anecdotes reveal struggling orphans and unexpectedly powerful mothers.

Amazon Anaconda. The team go off-road in Peru, searching for the mighty green anaconda _ and meet a massive bushmaster viper on the way.

After working hard throughout her pregnancy, it's just about time for Dr. Emily's maternity leave - but not before Dr. Pol and crew treat a slew of young animals, including a stray kitten, a clumsy baby alpaca, and a pair of screaming goat kids.

It's all dogs all day this week at Pol Veterinary Services! Dogs are an incredibly important part of the Pols' life, as both personal pets and clients. From unclaimed strays to nosey farm dogs, there's no pup Dr. Pol and crew won't treat.

A forensic look at how cheetahs hunt their prey, offering new perspectives on the tactics employed by these expert predators when stalking, chasing and bringing down antelope and wildebeest. Following a young cheetah mother over 18-months as she teaches her three cubs the secrets of the hunt.

Amazon Anaconda. The team go off-road in Peru, searching for the mighty green anaconda _ and meet a massive bushmaster viper on the way.

A forensic look at how lions hunt large prey like buffalo and zebra, offering new perspectives on the way these predators stalk, chase and kill. A lone lioness relies on cunning to feed her newborn cubs, whilst a fearless pride tries to take down the biggest prey of all, a giant African elephant.

She leads the formidable Sausage Tree Pride, an ensemble of buffalo-slaying huntresses. That is, until the migration crosses their prime domain and they demonstrate ultimate adaptability and switch prey species. But the pride has been compromised after a split-away group left their ranks and now she must muster her troupe to excel at motherhood while male coalitions complicate dynamics all around them.

Identified by her burnt orange gaze, she leads a pride of five closely-related lionesses and their six offspring. They overcome every challenge as a precision unit: the gauntlet of the buffalo hunt or the upheaval of new males that could either decimate the prides ranks or offer her the chance to finally mother cubs. But desperate drought and crippling disease push the sisterhood to the absolute brink of survival.

She overthrew the preceding ruler of North Clan in an unprecedented take-over, fighting her way up from a lowly rank to matriarch. She is both a ruthless battle commander, leading her clan in warfare against rivals and adversaries like lion, and devoted guardian to her clan and parent to her offspring.

The story of chimpanzees is told through the dynastic struggles of a chimp tribe - the embattled leader, the scheming challenger; wise old moms, and clinging infants; playful siblings and jealous ones. Fascinating anecdotes reveal struggling orphans and unexpectedly powerful mothers.

She leads the formidable Sausage Tree Pride, an ensemble of buffalo-slaying huntresses. That is, until the migration crosses their prime domain and they demonstrate ultimate adaptability and switch prey species. But the pride has been compromised after a split-away group left their ranks and now she must muster her troupe to excel at motherhood while male coalitions complicate dynamics all around them.

A forensic look at how lions hunt large prey like buffalo and zebra, offering new perspectives on the way these predators stalk, chase and kill. A lone lioness relies on cunning to feed her newborn cubs, whilst a fearless pride tries to take down the biggest prey of all, a giant African elephant.

Who says everything happens on the ground? And who says you need wings to fly? Welcome to the canopy of the Borneo rainforest, where the best action is high in the air, swinging from branches and leaping through the treetops. Animals here do everything without ever touching the ground.

Plenty of water, warmth and light provide perfect conditions for life to thrive and make the jungles the most diverse lands on Earth. But make no mistake, this is no Eden - from Jaguars to Gibbons, Hummingbirds to Orangutans, meet the incredible animals to discover why their struggles for survival in this crowded and competitive world have never been tougher. As jungle seasons become more unpredictable only the toughest animals will triumph.

Tigers have the strength of 13 men and their tongue has teeth. Polar bears can regenerate their own bones and may provide a cure for diabetes.

Raccoons can scale tall objects by changing the shape of their skeletons and the octopus pumps its blood with three hearts.

If you go down to the beach today, you could get a big surprise! Drones are revolutionising everything that we thought we knew about sharks. And the biggest surprise? That many sharks live closer to our shores than we might like to imagine. It's time to look behind you. The ocean's top predator could be much closer than you think!

Most shark attacks happen near shore and more sharks are being spotted on beaches across the world. Could sharks one day step onto land?

In this enhanced episode, from the familiar to the surprising, Baby Sharks follows 4-5 vastly different "hero" species of baby sharks from before birth through their first months of life…learning how to avoid danger, to find shelter… and to hunt. They'll win our hearts… as we cheer them on through setback and success to the end of the hour…And along the way, our perspective about sharks will change.

If you go down to the beach today, you could get a big surprise! Drones are revolutionising everything that we thought we knew about sharks. And the biggest surprise? That many sharks live closer to our shores than we might like to imagine. It's time to look behind you. The ocean's top predator could be much closer than you think!

Most shark attacks happen near shore and more sharks are being spotted on beaches across the world. Could sharks one day step onto land?

Shark experts examine the jaws of the world's three deadliest shark to determine what about a shark's bite is so deadly.

Never-before-seen footage explores the most astounding shark attacks from the last several years - and how each victim fought back.

In this enhanced episode, from the familiar to the surprising, Baby Sharks follows 4-5 vastly different "hero" species of baby sharks from before birth through their first months of life…learning how to avoid danger, to find shelter… and to hunt. They'll win our hearts… as we cheer them on through setback and success to the end of the hour…And along the way, our perspective about sharks will change.

Two teams of experts go to extraordinary lengths to take shark science into the wild as they investigate two of the most iconic shark superpowers - speed and bite force. In California the race is on as Andy Casagrande attempts to reveal the top speed of the world's fastest shark. And in the Bahamas, Brocq Maxey gets much closer than most to investigate the power in a shark's bite.

Shark biologists Dr Johan Gustafson and Dr Mariel Familiar Lopez investigate rising reports of bull sharks stealing from fishermen in Weipa, northern Australia. Could this methodical and radical shift in behaviour provide new evidence of shark intelligence? To find out, the team deploys ground-breaking experiments and technology, including a new prototype diving cage.

They've shared the ocean for millenia, but scientists have only begun to understand the relationship between SHARKS and DOLPHINS. New research allows us to peer into this incredible drama; redefining everything we thought we knew about sharks. They're stereotyped as independent loners, serial killers of the sea-but we've observed them hunting in teams, learning, and even passing on knowledge to fellow sharks.

If you go down to the beach today, you could get a big surprise! Drones are revolutionising everything that we thought we knew about sharks. And the biggest surprise? That many sharks live closer to our shores than we might like to imagine. It's time to look behind you. The ocean's top predator could be much closer than you think!

To surprise Diane for her birthday, Dr. Pol decides to clean up a rusty old sleigh he and the Mrs. purchased years ago. Will Doc, Charles and a few of their Amish friends be able to re-break the Pol's two Friesian horses and restore the old sleigh in time, or will Diane's dreams of a one-horse-open-sleigh, be dashed?

It is the week before Christmas and all through the farms, Dr. Pol is still working inside the red barns! It's beginning to look at lot like Christmas in Michigan as Dr. Pol heads to John Jourdan's for his first farm call of the day. Without a head chute, the set-up for these castrations is less than ideal but nothing Doc Pol can't handle. Meanwhile, Dr. Brenda races out to Rooftop Landing, where a reindeer named Ole is aching for a chance to pull Santa's sleigh. The end of the week finds the Pols in the mood for some holiday cheer.

This story of Solitaria, a puma mother with four cubs, set in Torres del Paine.

Cazadora, the only survivor of Solitaria's four cubs, has a lot to learn and she must do it on her own.

If you go down to the beach today, you could get a big surprise! Drones are revolutionising everything that we thought we knew about sharks. And the biggest surprise? That many sharks live closer to our shores than we might like to imagine. It's time to look behind you. The ocean's top predator could be much closer than you think!

This story of Solitaria, a puma mother with four cubs, set in Torres del Paine.

To surprise Diane for her birthday, Dr. Pol decides to clean up a rusty old sleigh he and the Mrs. purchased years ago. Will Doc, Charles and a few of their Amish friends be able to re-break the Pol's two Friesian horses and restore the old sleigh in time, or will Diane's dreams of a one-horse-open-sleigh, be dashed?

Pol Veterinary Services has yet another busy week on its hands. Will Dr. Pol and the other vets be knights in shining armor for this week's herd of ailing animals? Across town, there's a stalled labor at McConnell Farms, and this one is twice as complicated. Every minute is critical, especially with a twin calving, so Dr. Emily calls Dr. Pol for a little lesson on the Pol Vet way to handle it.

Two teams of experts go to extraordinary lengths to take shark science into the wild as they investigate two of the most iconic shark superpowers - speed and bite force. In California the race is on as Andy Casagrande attempts to reveal the top speed of the world's fastest shark. And in the Bahamas, Brocq Maxey gets much closer than most to investigate the power in a shark's bite.