The Hardest Challenge • 2015 • episode "1/7" • The Hunt

46:59

Welcome to an extreme landscape of rock, ice and snow. We tour the mightiest mountain ranges, starting with the birth of a mountain at one of the lowest places on Earth and ending at the summit of Everest. Find out how some of the most secretive animals rise to the challenge of mountain life. Share one of Earth's rarest phenomena, a lava lake that has been erupting for over 100 years. The same forces built the Simian Mountains where we find troops of gelada baboons nearly a thousand strong. In the Rockies, grizzlies build winter dens inside avalanche-prone slopes and climb the peaks to devour abundant summer moths. In another world first, the programme brings us astounding images of a snow leopard hunting on the Pakistan peaks.

2/11 • Planet Earth • 2006 • Nature

35:49

This documentary focuses specifically on insects. Giving you an unbelieveably up close and intimate view of the many unique secrets of the bug world. Answering scientific questions on how and why they have evolved certain bizarre adaptations, whilst using stunning imagery never seen before.

2018 • Nature

58:38

Armed with the latest global scientific research, Chris Packham and Liz Bonnin battle it out to find the definitive answer to the burning question - which are best, cats or dogs? Part 1: The animals go head to head in a series of rounds testing different aspects, beginning in this edition with intelligence, sensory powers and physical prowess. On the search for answers, dog-lover Chris comes face to face with a pack of wolves, while feline fan Liz confronts an Arabian wild cat to discover how the relationship humans and their pets have evolved.

Part 1/2 • Cats v Dogs: Which is Best? • 2016 • 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

44:00

Take an epic voyage over the remote island nation of New Zealand, the last habitable landmass to be discovered on the planet. No bigger than the state of Colorado, this small country offers an incredibly diverse landscape view that changes dramatically with each mile. From snow-capped mountains to sandy beaches, and from the glacier-carved Fiordland National Park to the crater lake of Mount Ruapehu, New Zealand is a land of extremes. It's a place where fire clashes with ice and people are always pushing the limits.

2017 • Nature

22:19

David Attenborough examines creatures that have fascinated us for centuries. A look at some species with unusual styles of consuming food.

S3E4 • Natural Curiosities • Nature