Analysis of the oldest reported trace of human faeces has added weight to the view that Neanderthals ate vegetables.
Found at a dig in Spain, the ancient excrement showed chemical traces of both meat and plant digestion.
An earlier view of these early humans as purely meat-eating has already been partially discredited by plant remains found in their caves and teeth.
Diet has been suggested as one of the reasons for the Neanderthals’ extinction, some 30-40,000 years ago. As meat-eaters, the explanation goes, they were out-competed by the more adaptable Homo sapiens.