The Permian ... of animals that had existed in the oceans for close to 300 million years. Dr Paul Kenrick is a researcher at the Museum who specialises in fossil plants. He explains that it was not ...

Reptiles first appear in the fossil record 315 million years ago and were the dominant animals during the Mesozoic era, which lasted for 270 million years until the extinction of the dinosaurs.

Birds are vertebrate animals adapted for flight ... The fossil record shows that birds evolved alongside the dinosaurs during the Jurassic period 160 million years ago. The best known fossil ...

From the tiny, silly-looking sun bear to the iconic polar bear, these animals are specially adapted ... than brown bears in regions farther south.. During hibernation, a bear's body temperature ...