Add Yahoo as a preferred source to see more of our stories on Google. Digital painting of T Rex roaring down at prey Dim-witted dope or brainy brawn? The debate over T. Rex's smarts continues, with a ...

For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...

Dinosaur Institute researcher shows throat bones accurately record maturity in dinosaurs, establishing Nanotyrannus was a fully grown, entirely distinct species from T. rex “The identity of the ...

The largest-ever study of how the “king of dinosaurs” grew shows a much longer, slower path to adulthood than scientists ...

There is no question that Tyrannosaurus rex got big. In fact, this fearsome dinosaur may have been Earth's most massive land ...

Tyrannosaurus rex is arguably the world’s most famous dinosaur, yet paleontologists are still learning more about this giant ...

Paleontologists at the North Carolina Museum of Natural Sciences have discovered a new species of dinosaur called nanotyrannus lancensis. The discovery came after studying a fossil called "Dueling ...

For decades, scientists have been counting annual growth rings—similar to tree rings—inside fossilized leg bones of ...