Chemist Harry Coover became famous in the 1940s for accidentally inventing superglue. Now scientists have just discovered that, without a degree in Chemistry, Neanderthals invented it first.

Hominids started gluing things together more or less in the Middle Pleistocene, about 200,000 years ago. The discovery suggests that these predecessors of modern humans had a higher level of cognition, and cultural development than was thought. A 50,000-year-old tooth allows us to date one of the most important Neanderthal sites in Spain.