A new study reveals Tyrannosaurus rex took 40 years to reach full size, not 30, as previously thought. Researchers analyzed bone tissue from fossils to determine their results.
A massive predator once roamed the Earth, towering over its rivals and casting a long shadow on the ancestors of T. rex. This giant, now known as Ulughbegasaurus, ruled the prehistoric world around 90 ...
A fossil from the blustery plains of Patagonia is revising your book on one of the most elusive bands of hunting dinosaurs. The newly discovered dinosaur, Joaquinraptor casali, preyed on the soggy ...
A mystery has been building in the Caribbean. Decades ago, fossilized teeth were discovered in Cuba dating to about 18 million years ago. They were small but tapered, sharp and serrated. They were the ...