Simulations calculated Tyrannosaurus speed from the motion of its swaying tail, finding that the massive dinosaur was a ...

Each week, SPIN digs into the catalogs of great artists and highlights songs you might not know for our Deep Cut Friday ...

Mosasaurs, giant marine reptiles that existed more than 66 million years ago, lived not only in the sea but also in rivers. This is shown by new research based on analyses of a mosasaur tooth found in ...

A team of researchers has discovered 16,600 footprints belonging to theropods — the dinosaur group that includes the ...

For decades, a small tyrannosaur skull has divided paleontologists over whether it belonged to a separate species or a ...

New research has overturned decades of uncertainty by showing that Nanotyrannus was a fully grown predator, not a juvenile T. rex.

Was Nanotyrannus a bona fide species or just a teenage Tyrannosaurus rex with a lot more growing to do? Scientists have settled that debate.

Scientists have confirmed that Nanotyrannus was a mature species, not a young T. rex. A microscopic look at its hyoid bone ...