Latest development in 'Crete feet' find serves as a reminder of the challenges facing dig sites.
Experts are intrigued by 5.7m-year-old footprints from Crete but argue we cannot yet know for sure whether they come from a human ancestor.
A new study can't rule out the possibility that human ancestors lived on Crete at the same time as they evolved in Africa.
The footprints of dinosaurs can tell a lot about how they moved about many millions of years ago.
A set of fossils that lay forgotten in a museum are revealing new secrets about Britain's prehistoric wildlife.
How to solve mysteries with an accessible computer program.