Season 37 - Episode Guide

Meet the planet's ultimate cats, from the famously fast cheetah to the lonesome snow leopard.

Discover how cats have conquered the world, thriving in almost every landscape on Earth.

See how new approaches and technologies help uncover some cats' most intimate secrets.

Follow a guide to the squirrel's success along with an orphan red squirrel called Billy.

Follow a close-knit family of wild dogs growing up in a land ruled by lions.

Follow two polar bear cubs as their mother leads them from their den for the first time.

Join Sir David Attenborough to learn about a sea creature that lived during the age of dinosaurs.

Travel around the world to uncover the history of mankind's relationship with the horse.

Travel around the world to uncover the history of mankind's relationship with the horse.

Experience the natural world through the eyes of the Vikings. Ewan McGregor narrates.

Uncover the variety of activity that occurs on the slopes of active volcanoes.

See how spring's rising temperatures and longer days spur plants to flower and animals to transform.

Follow animals as they pursue spring's bounty and meet the scientists who track their journeys.

Learn how climate change can affect nature's perfectly synchronized partnerships.