
Episode 1
Dark
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.
Episode credits
Directed by Stuart Armstrong

TV series
The series offers fascinating insights into the most successful animal group in the world. From the tiny Etruscan shrew to the giant blue whale, Mammals will reveal the secrets of their success, and how their winning design, incredible adaptability, unrivaled intelligence, and unique sociability have all contributed to their remarkable rise.
Availability
We haven't confirmed streaming options for Mammals in United States yet.
The series offers fascinating insights into the most successful animal group in the world. From the tiny Etruscan shrew to the giant blue whale, Mammals will reveal the secrets of their success, and how their winning design, incredible adaptability, unrivaled intelligence, and unique sociability have all contributed to their remarkable rise.
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Episode 1
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.
Directed by Stuart Armstrong

Episode 2
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.
Directed by Lydia Baines

Episode 3
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.
Directed by Daniel Rasmussen

Episode 4
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.
Directed by Will Lawson

Episode 5
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.
Directed by Rob Pilley

Episode 6
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.
Directed by Justine Allan
Episode information updated Nov 14, 2026
Available now in United States
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David AttenboroughSelf - Narrator