Series 1

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

1. 

   1. Dark

   2024-03-31 · 59m

   The 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.

2. 

   2. The New Wild

   2024-04-07 · 59m

   Mammals 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.

3. 

   3. Water

   2024-04-14 · 58m

   From 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.

4. 

   4. Cold

   2024-04-21 · 59m

   From 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.

5. 

   5. Heat

   2024-04-28 · 59m

   From the barren Australian outback to the remote, dry deserts of Namibia, mammals use their ingenuity, incredible intelligence and remarkable resilience to beat the heat.

6. 

   6. Forest

   2024-05-05 · 59m

   From 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.