The only known cannibal among dinosaurs replaced its pearly whites more often than scientists expected, and so did some other carnivores. By Katherine Kornei If there was a tooth fairy in the ...

The hunting allosaurus used its head like a baseball bat, knocking its prey sideways before using its teeth to tear away flesh. Allosaurs, which were built like tyrannosaurs only smaller, lived and ...

One of the things that really bugs me about the Jurassic Park movies is the prominent role given to Tyrannosaurus rex—a dinosaur that didn’t appear until the ensuing Cretaceous period. I am therefore ...

DILLON — You could call it beginner's luck, but H. James Birx likes to think of his discovery as poetic justice. After all, he and Keith Kersting volunteered to spend four weeks digging under a hot ...

Allosaurus was at the top of the food chain many years before T. Rex. Allosaurus was at the top of the food chain many years before T. Rex. Dinosaur Train is available to stream on pbs.org and the ...

In a paper published August 23, authors Cameron Pahl and Luis Ruedas, of Portland State University, show that Allosaurus, a large carnivorous dinosaur from the Jurassic that has long been thought to ...

About about 145 million to 200 million years ago during the Jurassic Period, Earth’s creatures had to contend with one of the most powerful, ferocious predators that ever lived—a clawed, flesh-eating, ...

One of the Jurassic Period's fiercest predators, known for ripping apart its prey before gulping it down, has arrived at The Children's Museum. Fortunately for visitors, the Allosaurus died about 150 ...