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

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

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

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

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

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.

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

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

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

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

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

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

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