Toothy Tyrannosaurus rex had a tiny cousin, new suggests research. The dwarf dino, named Nanuqsaurus hoglundi, lived 70 million years ago in Alaska, according to a new study, published in the journal ...

The fearsome Tyrannosaurus rex was an enormous dinosaur. However, this giant carnivore had very humble beginnings, according to a new fossil discovery. Paleontologists recently discovered an early ...

Scientists have long puzzled over the origins of a mysterious dinosaur excavated in the 1940s: Was it a young T. rex or another type of dinosaur? At first, researchers had only a tyrannosaur skull to ...