Series 1
Sir David Attenborough reveals the world of mammals and the secrets of their success.

01 Dark
59mThe dark, a world of opportunity for mammals. More than two-thirds prefer the cover of the night, with some now returning to the safety of the shadows in order to avoid us.
2024-03-31 7.7
02 The New Wild
59mMammals have mastered every environment on Earth, but today the planet is changing faster than ever. Mammals must change with it to have a chance of survival in this, the new wild.
2024-04-07 8.5
03 Water
58mFrom freshwater jungle ponds to the dark depths of the open ocean, air breathing mammals have found remarkable ways to overcome the many challenges of a life in water.
2024-04-14 7.7
04 Cold
59mFrom ice-covered seas to snow-capped mountains, mammals have conquered the cold, living in the harshest places on earth, thanks to their remarkable intelligence and adaptations.
2024-04-21 7.3
05 Heat
59mFrom the barren Australian outback to the remote, dry deserts of Namibia, mammals use their ingenuity, incredible intelligence and remarkable resilience to beat the heat.
2024-04-28 8.0
06 Forest
59mFrom deep in the undergrowth to the highest tree, forests are home to two-thirds of all mammal species. Discover how they overcome the many challenges of life in a crowded world.
2024-05-05 7.5


