A fossil skull barely 1 inch long has proved to be a newborn reptile from Brazil’s Late Triassic, a period more than 230 million years ago when early reptiles dominated land ecosystems. Its tiny jaw ...

D analysis of bite marks on a tyrannosaur foot bone shows that smaller tyrannosaurs scavenged carcasses, likely consuming the final remains after most flesh was gone. Tyrannosaurs are usually imagined ...