The Mwamba lion pride dominates the west bank of the river in Zambia's Luangwa Valley. But this family is facing an uncertain future.

We’re all familiar with Jaws. But the Great White is not the only shark to rule the oceans. We’ll watch Wobbegong sharks go tail-fishing and Epaulet sharks walk on land. From the tiger shark that chews through metal to the reef tips that prowl in packs…sharks come in 500 different shapes and sizes and many are top notch hunters in their own right.

Human daredevils are addicted to adrenaline: the greater the risk - the bigger the rush. But some animals put their lives on the line every day; not for fun - but survival. We're counting down the ultimate top ten animal adrenaline junkies to find who takes the biggest risks, leaving bodies bent, broken, or dead. From free-wheeling salamanders to BASE jumping barnacle geese; buckle up - it's going to be a wild ride on the Ultimate Animal Countdown.

Some animals die hard, using body armor and bodyguards; barricades and bombs. It's an evolutionary arms race between the eaters and the eaten. We're counting down the ultimate top ten defenders in the natural world to find the animal with the most sophisticated security systems. Discover you're not paranoid if the world really is out to eat you, on the Ultimate Animal Countdown.

Wild sex is daring…dangerous…deadly. It's about much more than making babies. Sex can mean a peaceful society, social currency, a greeting, or a free lunch. We're getting between the sheets with the ultimate top ten sexual athletes of the natural world-from lonely virgins to outright predators. It's getting steamy on the Ultimate Animal Countdown.

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.

Human daredevils are addicted to adrenaline: the greater the risk - the bigger the rush. But some animals put their lives on the line every day; not for fun - but survival. We're counting down the ultimate top ten animal adrenaline junkies to find who takes the biggest risks, leaving bodies bent, broken, or dead. From free-wheeling salamanders to BASE jumping barnacle geese; buckle up - it's going to be a wild ride on the Ultimate Animal Countdown.

Some animals die hard, using body armor and bodyguards; barricades and bombs. It's an evolutionary arms race between the eaters and the eaten. We're counting down the ultimate top ten defenders in the natural world to find the animal with the most sophisticated security systems. Discover you're not paranoid if the world really is out to eat you, on the Ultimate Animal Countdown.

The Christmas Island red crab is a land bound crab that still has strong ties to the ocean, the only place where they can give birth to their young.

Ain't love grand? Well, to many animals in the wild, attracting a mate and getting the chance to breed is more like a blood sport. The mating urge drives animals to make long journeys, to let down their guard in the presence of predators, and even to fight each other to the death

Simon and Siouxsie save an angry, and badly injured spitting cobra from someone's house and must take it to the vet for an amputation. They get called to the university where a black mamba has eaten two kittens, and both nearly get bitten while trying to catch the monster. They also rescue a mystery green snake and a black mamba from two separate cars!

In the African bush every animal, young and old, is in a fight for its life. In the grasslands of Botswana, this brutal arms race means the difference between death and glory. Each has their own tactics and weapons that will either protect or kill.

A land of extremes, Chile is South America’s final frontier. And its wildlife is as varied as the vast nation’s ecosystems. But nature here is far from peaceful. From the fearsome waters of Tierra Del Fuego to the frozen Patagonian steppe, animals outsmart prey, compete for mates and battle the elements. Survival of the species doesn’t come without a fight.

Simon and Siouxsie save an angry, and badly injured spitting cobra from someone's house and must take it to the vet for an amputation. They get called to the university where a black mamba has eaten two kittens, and both nearly get bitten while trying to catch the monster. They also rescue a mystery green snake and a black mamba from two separate cars!

In the African bush every animal, young and old, is in a fight for its life. In the grasslands of Botswana, this brutal arms race means the difference between death and glory. Each has their own tactics and weapons that will either protect or kill.

In a constant battle to survive, animals have developed a range of superpowers that give them the best chance in the deadly games that play out across the Kalahari.

Meet the regulars! Pol Vet faces loyal clients animal emergencies. Charlie the mini-horse gallops in for treatment, Dr. Brenda welcomes a struggling newborn alpaca to the herd, and Doc checks in on old friends at local farms and ranches. After decades in business, generations of both humans and animals rely on Dr. Pol in their time of need.

Can't help falling in love this week on The Incredible Dr. Pol! It's another whirlwind weekend as Dr. Pol, Dr. Brenda and Dr. Emily encounter everything from constipated cats, gassy horses-even a surprise proposal!

As the leaves change during autumn in Michigan, the crew at Pol Vet are falling into the same busy routine! An afterhours emergency has Dr. Pol on his toes when a case involving a baby reindeer turns into a three-day dilemma.

Even in the most forgiving climates of the wild, life is a constant struggle. But the animals who make their homes in the world's coldest habitats have honed bodies and behavior to survive against the odds, and each other. They live brutally and die brutally, but the ones that come out on top are The Masters of the Freeze.

Octopus are like aliens on earth but they have one superpower that we are only now beginning to fully appreciate. By changing their color hundreds of times an hour, or transforming the shape of their bodies to mimic their deadliest enemies, octopus are the most extraordinary shapeshifters on the planet.

Octopuses break all the rules on animal intelligence. Born into the world as orphans, they are self-taught masterminds; capable of solving complex problems, strategizing, even planning for the future. Extraordinary superpowers that are the secret to their success.

Octopuses were always thought to be natures ultimate loners, preferring their own company. The truth is they have secret social lives. From moms to be hanging out in the deep in their hundreds to an octopus capable of coworking with another species. These aliens of nature are more sociable than ever imagined.

The rugged coast of our biggest state harbors the most incredible wildlife in America. When winter breaks, animals make the most of the endless sunshine before this world closes again in darkness. This is the story of the creatures that endure this harsh reality along the shoreline Alaskas life on the edge.

It might be one of the most famous continents on the planet, but the story of Australia hasn't been told quite like this before. Come face-to-face with Australia's most iconic - and most mysterious - animals including the cassowary, tree-kangaroo, dingo, echidna and platypus as they soar, swim and stalk through the unspoiled and spectacular environment.