The Rebel Army • 2016 • episode "S1E4" • Savage Kingdom

4:50

Dolphins are one of the smartest animal species on Earth. In fact, their encephalization quotient (their brain size compared to the average for their body size) is second only to humans. But exactly how smart are they? Lori Marino details some incredible facts about dolphins.

TED-Ed • 2015 • Nature

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

58:56

Vultures are the birds that many people love to hate, but cameraman and naturalist Charlie Hamilton James sees them as beautiful and intelligent creatures that deserve respect. He believes that to appreciate them, people just need to spend time with them and he headed to East Africa to do exactly that. His journey exposes not only a softer, more caring side to these maligned birds but also a much bigger story, one that leaves vultures needing many more admirers.

Natural World • 2014 • Nature

58:34

Professor Brian Cox follows Earth's epic journey through space. He takes to the air in a top-secret fighter jet to race the spin of the planet and reverse the passage of the day. In Brazil, a monstrous wave that surges up the Amazon River provides an epic ride of a different kind - chased by a top surfer through the rainforest, this tidal wave marks Earth's constant dance with the Moon. Greenland experiences some of the biggest swings in seasons in the world, but despite the deep freeze, the harsh winter brings opportunity to the Inuit people who live there. All this spectacle here on Earth signals that we are thundering through the universe at breakneck speed. Brian explains why we can't feel it and how understanding motion brings us to understanding the nature of space and time itself, leading to the astonishing conclusion that the past, present and future all exist right now.

Part 2 • Forces of Nature With Brian Cox • 2016 • Nature

59:02

This is the story of two tiny animals coming of age. In the wild woods of North America, a young chipmunk is gathering a vital store of nuts ahead of his first winter - in his way are ruthless rivals and giant predators. In the steaming rainforest, a young tree-shrew is forced deep into the jungle to find food. She must draw on all her intelligence and agility if she is to escape the ultimate jungle predator - a reticulated python!

S1E2 • Hidden Kingdoms • 2014 • Nature

23:45

As the planet warms, hurricanes could become even more dangerous and destructive. What can be done to survive and minimize the threat of these storms?

S3E9 • Explained • 2021 • Nature