Humongous T. rexes might not be as old as they seem.
Dinosaurs types are many and varied, from small bird-like creatures to the largest animals ever to walk on Earth. The subject of blockbuster films, history museum exhibits and much more, dinosaurs continue to interest people today after first appearing approximately 230 million years ago. These vertebrate animals dominated the land for more than 160 million years before experiencing a catastrophic extinction at the end of the Cretaceous period 65 million years ago.The first dinosaur was recognized in the 19th century and ever since, dinosaurs have been the source of many questions.What contributed to the rapid extinction of the dinosaur? What do the latest fossil findings reveal about the dinosaur and its way of life? How is the modern bird connected to these prehistoric creatures? Could dinosaurs like Tyrannosaurus Rex and Brontosaurus really be brought back to life with mosquito DNA?Inside you'll find dinosaur news & features, along with plenty of pictures.
The asteroid that sealed the dinosaurs' fate at the end of the Cretaceous struck at an angle that was the worst-case scenario for life on Earth.
Researchers studied bite marks on more than 2,000 dinosaur bones and found that some of them were cannibalized.
A new Spinosaurus tail fossil shows that this hunter could slice through the water in pursuit of fish, becoming the first-known swimming dinosaur.
Paleontologists found peculiar cavities in the tailbones of a duck-billed dinosaur, suggesting that it suffered from tumors caused by Langerhans cell histiocytosis.
A newfound species of thalattosaur, a Triassic marine reptile, had a dramatically pointy skull unlike any seen in reptiles alive today.
Paleontologists have discovered the skeleton and radioactive skull of a previously unknown species of Allosaurus.
Two 6-foot-tall dinosaurs, nicknamed "Jane" and "Petey," have been confirmed as Tyrannosaurus rex teenagers with years of growth ahead of them, and not a pygmy dinosaur species as some had argued.
A previously unknown species of primitive bird has a tail feature associated with flight in modern birds.
The chemistry of life better matches that found in volcanic vents rather than the sea, as Darwin predicted.