With sharp catlike teeth and a doglike body, ancient carnivores called hyaenodonts were once at the top of the food chain, but the entire lineage was wiped out about 25 million years ago, leaving ...

This new combination of analyses was performed on teeth of carnivorous dinosaurs, named theropods, from a set of isolated teeth from the famous Cretaceous (~100million years old) Kem Kem beds of ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...