DarkThe 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.
The New Wild
E2
The New WildMammals 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.
Water
E3
WaterFrom 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.
Cold
E4
ColdFrom 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.
Heat
E5
HeatSir David Attenborough reveals how, by pushing themselves and their bodies to the absolute limit, mammals have found remarkable ways to beat the heat, surviving in some of the hottest places on our planet.
Forest
E6
ForestFrom the forest floor to high above the trees, forests are home to two thirds of all mammal species. Sir David Attenborough reveals how they overcome the many challenges of life in this crowded world.
