Mountains of Fire and Ice • 2020 • episode "S1E3" • Mysterious Planet

54:08

The Rockies stretch 3,000 miles up the length of North America, and are one of the great mountain ranges of the world. These mountains are home not just to cougars, wolverines, wolves, and grizzly bears, but also daredevil wingsuit flyers, which jump from high peaks, and Native Americans, competing in breakneck horse races.

S1E1 • Kingdoms of the Sky • 2021 • Nature

59:22

Liz Bonnin presents a controversial and provocative episode of Horizon, investigating how new scientific research is raising hard questions about zoos - the film explores how and why zoos keep animals, and whether they need to change to keep up with modern science, or ultimately be consigned to history. Should zoos cull their animals to manage populations? Liz travels to Copenhagen Zoo, who killed a giraffe and fed it to the lions, to witness their culling process first hand. They think it is a natural part of zoo keeping that is often swept under the carpet. Should some animals never be kept in captivity? In a world exclusive, Liz visits SeaWorld in Florida and asks if captivity drove one of their orcas to kill his trainer. But could zoos be the answer to conserving endangered species? Liz examines their record, from helping breed pandas for the wild to efforts to save the rhinos. She meets one of the last surviving northern white rhinos and discovers the future of this species now lies in a multimillion-dollar programme to engineer them for stem cells. Veteran conservation scientist Dr Sarah Bexell tells Liz the science of captive breeding is giving humanity false hope.

Horizon • 2016 • Nature

59:05

In the salt marshes of the Camargue, Chris explores the evolutionary beginnings of animal movement and how it reached its peak in one of the most elegant and athletic animals on Earth: the horse.

Evolution • 2026 • Nature

43:37

As temperatures hit minus 60 food becomes scarce, and animals such as foxes and hares shed their colourful coats to camouflage themselves in the snow. The end of winter heralds one of the world's greatest feeding frenzies as large ocean predators target the millions of fish who have found refuge in the Gulf of Alaska.

S1E1 • Alaska: A Year in the Wild • 2017 • Nature

44:33

Part wolf, part coyote this new hybrid species is the subject of a startlingly beautiful new film called Meet the Coywolf. A documentary that will both shock and amaze you. Coywolves emerged from a thin strip of land at the southern end of Algonquin Park less than a hundred years ago. Their arrival on the scene marks a rare event, the creation of a brand new hybrid species. A formidable wild animal that has spread across North America at an unprecedented pace, returning a new top predator to territories once roamed by wolves. Zoologist Roland Kays of the New York State Museum has been tracking these new creatures and describes them as having "a coyote like skull with wolf like teeth".

S52E10 • The Nature of Things • 2013 • Nature

58:24

Florida is famous for its beaches, blue water and year round sun – but it also has a surprising wild side. It's home to pine forests, coral reefs and the famous Everglades wetland, the largest sub-tropical wilderness in the US. Here, manatees swim in crystal clear rivers, baby alligators practice their hunting skills and miniature deer roam free. Every year, this state faces the full forces of nature - from wildfires to flooding and powerful hurricanes. And today, a growing human population and a cast of animal invaders are threatening this wild paradise. With the help of pioneering scientists, will Florida’s wildlife continue to weather the storm?

Natural World • 2019 • Nature