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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.

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.

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.

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.