Mammals live all across the world. They can be found living in the ground, in trees, and even in the sea. There are many different kinds of mammal, including us humans! Find out more about ...

Although they came into their own only after the extinction of the dinosaurs some 65 million years ago, mammals had maintained a low-profile existence for some 150 million years before that.

The first mammals appeared around 225 to 200 million years ago, during the late Triassic period. This was when the first dinosaurs appeared. Early mammals were very small, about the size of rats ...

Studies demonstrate that other animals dream. However, their experience depends on their lifestyle and brain anatomy.

From the top of Shifting Sands dune in the Serengeti Plain of Africa a million mammals are in motion. Wildebeests. Zebras. Gazelles. The plain is black with them. It is wildebeest calving season ...