Things like footprints, burrows, eggs and even poo (called coprolite) can be fossilised too. A fossil is the preserved remains or traces of a dead organism. The process by which a fossil is formed ...

Guarding long-buried treasure, a monitor at a dig site looks out for thieves who illegally remove fossils for sale to collectors. He sleeps in the one-room shack on the rim, keeping an ear cocked ...

Find out how they lived, when they vanished, and how much we know about them today. Based on the fossil record, ammonites came in a wide range of sizes and shapes, from smaller than an inch to as ...