The Forgotten Forest • 2020 • episode "S1E5" • Mysterious Planet

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

50:00

Dolphins have been a source of curiosity to humans and have appeared in our stories and myths for thousands of years. What is the link between our two species? Why do we seem to be so interested and curious about each other?

S1E1 • Conversations with Dolphins • 2016 • Nature

29:15

As almost all animal inhabitants of Antarctica are forced to migrate north, the sea underneath the frozen ice still provides a home to many specially adapted fish whose cells are protected from freezing through an "antifreeze" liquid. Many of them feed on the faeces of other animals. The most notable larger animal that does not migrate north is perhaps the Weddell Seal, which can be found as close as 1300 kilometres to the pole. Groups of seals tear holes into the ice to dive for food and come up to breathe. The females come back to the ice to give birth.

S1E5 • Life in the Freezer • 2003 • Nature

49:16

A look at the many and varied ways in which animals procreate in order to ensure that their genes are passed on to the next generation.

12/12 • Trials of Life • 1990 • Nature

59:05

In 1960, a young secretary from Bournemouth, with no scientific qualifications, entered a remote forest in Africa and achieved something nobody else had ever done before. Jane Goodall became accepted by a group of wild chimpanzees, making discoveries that transformed our understanding of them, and challenged the way we define ourselves as human beings by showing just how close we are as a species to our nearest living relatives. Since then, both she and the chimps of Gombe in Tanzania have become world famous - Jane as the beauty of many wildlife films, they as the beasts with something profound to tell us. As one of the programme's contributors, David Attenborough, suggests, Jane Goodall's story could be a fable if it wasn't true. In this revealing programme filmed with Jane Goodall in Africa, we discover the person behind the myth, what motivates her and the personal cost her life's work has exacted from her - and why she still thinks we have a lot to learn from the chimps she has devoted her life to understanding.

2010 • Nature

49:10

The focus turns to the mastery of flight, from the science of gravity to the ability of birds to cover extremely long distances.

S1E2 • The Life of Birds • 1998 • Nature