Episode 1
Dark
59m7.7 / 10
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
Mammals
20241 season8.4 / 10
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.
Streaming, rental and purchase options
Where to watch in United States
Checked Sep 4, 2026
Mammals is available to stream on DirecTV On Demand, Discovery+, Discovery+ (Via Amazon Prime), HBO (Via Hulu), HBO Max, HBO Max (Via Amazon Prime), and Philo in United States. You can also buy it from Amazon, Apple TV, and Fandango at Home. Use the direct links below to open the provider.
Stream
Synopsis
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.
Season 1 episodes
Choose an episode, then use the watch options above for the show.
Where to watch Mammals
Episode 2
The New Wild
59m8.5 / 10
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.
Episode credits
Directed by Lydia Baines
Episode 3
Water
58m7.7 / 10
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.
Episode credits
Directed by Daniel Rasmussen
Episode 4
Cold
59m7.3 / 10
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.
Episode credits
Directed by Will Lawson
Episode 5
Heat
59m8.0 / 10
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.
Episode credits
Directed by Rob Pilley
Episode 6
Forest
59m7.5 / 10finale
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.
Episode credits
Directed by Justine Allan
Episode information updated Sep 19, 2026
More about Mammals
Cast
David AttenboroughSelf - NarratorProduction details
- Status
- Ended
- Series type
- Miniseries
- Episodes
- 6
- Original language
- English
Networks & production
BBC OneUnited Kingdom
BBC AmericaUnited States
ZDFGermany
France TélévisionsFrance
BBC Studios Natural History UnitUnited Kingdom
Themes
animal behaviouranimal documentaryanimal evolutionanimal lifeanimals & natureclimate changeendangered speciesglobal warming
