For most animals in competitive ecosystems everyday is a struggle. First you have to look out for predators and other dangers ...

One fluffy figure peers through the center of a slice of bread while another holds a clear bottle in its mouth the unusual pairing bringing a lighthearted touch to the quiet scene.

An analysis of tooth enamel from animals that roamed the western United States about 150 million years ago, including (from left) Allosaurus, Apatosaurus, a herd of Diplodocus and two Camptosaurus, ...