A jawbone fossil found on a UK beach belongs to one of the largest marine animals that ever lived, scientists say.

The fragment of jaw bone provides evidence of an east-west divide in the evolution of dinosaurs on the North American continent.

Researchers say fossils found in northern Alaska came from a new species of dinosaur.

A fossil find adds another twig to the human evolutionary tree, giving further evidence that the well-known “Lucy” species had company in what is now Ethiopia.