Add Yahoo as a preferred source to see more of our stories on Google. A worthy matchup of big teeth, little brains. Picture this: Two dinosaurs with massive teeth and hulking figures circle each other ...

Add Yahoo as a preferred source to see more of our stories on Google. An illustration of an adult Nanotyrannus attacking a young T. rex. In the latest episode of a long-standing debate over the ...

Tooth marks matching Deinosuchus teeth have been found on dinosaur bones, proving the giant croc attacked living prey rather than just scavenging.