In the Grip of the Ocean • 2017 • episode "S1E1" • Wild Galapagos

5:27

Our planet was once populated by megafauna, big top-of-the-food-chain predators that played their part in balancing our ecosystems. When those megafauna disappear, the result is a "trophic cascade," where every part of the ecosystem reacts to the loss. How can we stay in balance? George Monbiot suggests rewilding: putting wolves, lions and other predators back on top -- with surprising results.

TED-Ed • Nature

48:30

Across Iberia, food chains and ecosystems are being restored allowing endangered animals, including the rarest cat in the world, to flourish.

S1E1 • Europe's New Wild • 2021 • Nature

55:01

The next instalment describes the move from water to land. The fish that did so may have been forced to because of drought, or chose to in search of food. Either way, they eventually evolved into amphibians. Such creatures needed two things: limbs for mobility and lungs to breathe. The coelacanth is shown as a fish with bony fins that could have developed into legs, and the lungfish is able to absorb gaseous oxygen. However, evidence of an animal that possessed both is presented in the 450 million-year-old fossilised remains of a fish called a eusthenopteron. Three groups of amphibians are explored.

6/13 • Life on Earth • 1979 • Nature

57:36

How animals survive when the northern half of Asia is transformed by snow and ice each year. Featuring footage of Himalayan wolves hunting the fast-moving chiru antelope, red-crowned cranes learning to perform intricate mating dances, and Amur tigers in the forests where Russia, China, and North Korea meet - an area that is also home to the world's largest owls.

S1E3 • Asia • 2024 • Nature

50:00

In our hectic world so much seems to pass us by. All around us dramas are playing out, but they often happen so fast that we don’t even see it: blink and you’ll miss it. But when you slow down the action a whole new world is revealed.

2020 • Nature

46:00

A look at how dogs have become part of human life and the closest of companions. An example of this special relationship is the amazing story of a cliff-diving Jack Russell.

S1E1 • Secret Life of Dogs • 2016 • Nature