A fossil is the preserved remains or traces of a dead organism. The process by which a fossil is formed is called fossilisation. It’s very rare for living things to become fossilised.

Paleontologist Roger Benson of the American Museum of Natural History in New York City explained how fossils are defined. He specifically notes how fossils differ from skeletons, how fossils don ...

Dinosaurs had sex. Fossil nests and eggs, as well as the ways today’s birds and crocodiles reproduce, leave no doubt on that ...