Fossils

A process of desiccation and deflation explains why dinosaur 'mummies' aren't as exceptional as we might expect, according to a study.

Researchers have conducted a new analysis of the origins of 'bird-hipped' dinosaurs -- the group which includes iconic species such as Triceratops -- and found that they likely evolved from a group of animals known as silesaurs, which were first identified two decades ago.