Evolution Earth

Stories of how animals react to Earth's extremes, from humpback whales to tiny butterflies and savanna chimpanzees.

From the Galapagos Islands to the edge of Antarctica, island wildlife reveal insights into the rapidly changing planet.

Animals go to extraordinary lengths to survive in the hottest and driest extremes, from the Sahara Desert to Australia.

Polar bears in the Arctic, penguins in Antarctica and other animals on icy islands can reveal changes taking place at the planet's frozen extremes.

Scientists take a look at animal species with the power to transform and restore grasslands.