Ancient animal history is extremely difficult to reconstruct, for a number of reasons. Some of the earliest creatures in existence were soft-bodied and microscopic, leaving behind very little evidence ...

A recent walk on a remote Tasmanian beach took an unexpected turn when a beachgoer noticed unusual tracks cutting across the sand. The wide, rectangular trail featured small, circular indentations on ...

A remarkable fossil discovery in southwest China is rewriting the story of how complex animal life began, showing that many key animal groups appeared millions of years earlier than scientists once ...