Continuing the Line • 1990 • episode "12/12" • Trials of Life

29:20

The second episode of the documentary series takes a look at bizarre and extraordinary feathered dinosaurs, many of which have only just been discovered. These feathered beasts are revolutionising our understanding of life on Earth as they blur the boundaries between what we know of dinosaurs and birds. China sits at the heart of the feathered dinosaur discoveries and is the home of one of the most unusual discoveries on Earth: the epidexipteryx. Only the size of a pigeon, this predator was the most bird-like of any dinosaur and is the first known case of ornamental feathers. But feathers were not just confined to the small. From caudipteryx to sinosauropteryx and the 8-metre-long gigantoraptor, feathers may have been used for flight, for insulation or even to intimate and attract. These dinosaurs not only hint at how animals might have developed flight, but also suggest that dinosaurs may still live among us today - as birds.

S1E2 • Planet Dinosaur • 2011 • Nature

58:00

Sir David Attenborough chooses his favourite recordings from the natural world that have revolutionised our understanding of song. Each one - from the song of the largest lemur to the song of the humpback whale to the song of the lyrebird - was recorded in his lifetime. When Sir David was born, the science of song had already been transformed by Charles Darwin’s theory of sexual selection: singing is dangerous as it reveals the singer’s location to predators, but it also offers the male a huge reward, the chance to attract a female and pass on genes to the next generation. Hence males sing and females don't. Today, new science in the field of birdsong is transforming those long-held ideas. Scientists are discovering that, in fact, in the majority of all songbird species, females sing - and it is only now they are being properly heard. Through this revelation and others, we can understand that animal songs are marvelous examples of the spectacular survival strategies that species have developed in order to stay alive.

2021 • Nature

59:21

The squirrel family is one of the most widespread on earth, so what is the secret to their success? There are squirrels that can glide through the air, outwit rattlesnakes and survive the coldest temperatures of any mammal. We uncover the extraordinary abilities of these cheeky characters, putting their problem solving to the test on a specially designed assault course. We team up with some of the world's top squirrel scientists who are making groundbreaking discoveries - from the fox squirrel who can remember the location of 9,000 nuts to the grey squirrel whose tree-top leaps are the basis of new designs in robotics. We also see the world through the eyes of an orphan red squirrel called Billy, as he grows up and develops all the skills he will need to be released back to the wild. It is time to meet the animal family we should never underestimate - the super squirrels.

Natural World • 2018 • Nature

58:22

Sir David Attenborough gives his unique perspective on over half a century of innovation in wildlife filmmaking. He revisits key places and events in his filming career, reminisces with his old photos and reflects on memorable wildlife footage - including him catching a komodo dragon and swimming with dolphins. Returning to his old haunts in Borneo he recalls the challenges of filming in a bat cave and shows how with modern technology we can now see in the dark.

S1E1 • Attenborough: 60 Years in the Wild • 2012 • Nature

41:41

David Schwimmer travels through the Andes, uncovering two different worlds. The Andes: one mountain range connecting two completely different worlds: A frigid ice-land and a fortress of Fire

S1E3 • Mysterious Planet • 2020 • Nature

48:04

High above the skies of Israel, an avian migration of staggering proportions attracts birdwatchers from all over the world. From gliding birds like the short-toed eagle to waders like red-necked phalaropes, here's your chance to track one of the most important stops on the bird migration route--no binoculars needed.

S1E5 • Wild Israel • 2018 • Nature