Sir David Attenborough reveals how Mammals have conquered the Earth, uncovering the secrets to their success with their winning design, incredible adaptability, unrivalled intelligence, and unique sociability.

66 million years ago, when the reign of the dinosaurs came to an end, mammals were set free to exploit every corner of the planet. In this series we will reveal the strategies and behaviours behind their astonishing success, their unique traits, their incredible parental skills, plus a supreme intelligence that lets them learn, remember, problem solve, and work together to find solutions.

In six episodes we will show how mammals have taken advantage of every major environment on earth. They are found in every ocean, on every continent and in every habitat, from frozen wildernesses, dense jungles, baking deserts, even the dark depths of the open ocean and the skies above our forests.