North America • 2023 • episode "S2E5" • Prehistoric Planet

49:00

How many animals - including zebras, moose and stalk-eyes flies - assess their opponents' fighting prowess before making an attack that risks injury or death.

8/12 • Trials of Life • 1990 • Nature

59:01

New England is the stage for the most incredible colour change on earth, when the vivid greens of summer give way to the gold’s and reds of autumn. This film reveals how this vibrant fiesta is created by the battles between the trees and the forests' inhabitants. Moose, chipmunks, rattlesnakes and a bizarre mixture of caterpillars all play a crucial role, but surprisingly the forest itself was made so colourful thanks to a combination of hard work by beavers, ants and humans.

S1E1 • Earth's Greatest Spectacles • 2016 • Nature

28:58

In this episode, Iolo investigates the courtship and nesting behaviour of birds, including the amazing courtship display of great crested grebes at a reservoir near Pontypool, the impressive sky dance of hen harriers in the dramatic Cambrian Mountains, how nuthatch use mud like cement to prepare their nest in a woodland near Harlech, and why long-tailed tits near Newtown are exceptional nest builders. On the Lleyn Peninsula near Trefor, he looks at why one colony of shags nest earlier than any others in Wales, and in Pembrokeshire he finds out where house martins nested before they used our buildings. Iolo also looks at the variety of places birds like to nest, from little ringed plovers on shingle banks along the River Tywi to puffins underground on Skomer.

S1E2 • Secret Life of Birds • 2012 • Nature

52:18

You find fungi in Antarctica and in nuclear reactors. They live inside your lungs and your skin is covered with them. Fungi are the most under appreciated and unexplained organisms, yet they could cure you from smallpox and turn cardboard boxes into forests. They could even transform Mars into Eden. There are vastly more fungi species than plants and each and every one of them plays a crucial role in life’s support systems. Join us on a journey into the mysterious world of Fungi to witness their beauty, unravel their mysteries and discover how this secret kingdom is essential to life on Earth, and may in fact hold the key to our future.

2018 • Nature

48:44

Formed during a cataclysmic volcanic eruption two million years ago, Tanzania's Ngorongoro Crater is home to the highest concentration of mammals in the world. Explore this vibrant ecosystem and the extraordinary geological features that have made it a haven for biodiversity.

S1E3 • Nomads of the Serengeti • 2018 • Nature

53:28

On a high ridge in Newfoundland, Canada, nestled between the Atlantic Ocean and the borders of an old grove forest, a Red fox, the matron of her family group, gives birth yet again. Follow the pups as they grow and learn to hunt, adapt, and survive. Explore the family dynamic of these clever creatures as bonds are formed. But the vixen knows that not all her cubs will inherit these tall trees, crystal lakes, and the ocean spray. Before the snows come again, she will have to banish some of her offspring for the good of the family. We also hear from scientists in Madison, Wisconsin and Bristol, England, about their studies on urban Red foxes who are facing a much different challenge than their Canadian counterparts. And another scientist tracks how Red foxes are moving out to the Arctic tundra and surviving in one of the harshest landscapes.

PBS Nature • 2017 • Nature