The enamel that forms the outer layer of our teeth might seem like an unlikely place to find clues about evolution. But it tells us more than you’d think about the relationships between our fossil ancestors...
Since the late 19th century, sauropod dinosaurs (long-necks like Brontosaurus and Brachiosaurus) have been almost universally regarded as herbivores, or plant eaters.
However, until recently, no direct evidence – in the form of fossilised gut contents –...
