With so many of them having been ambush predators, perhaps we should have expected they could hide themselves from us like this.

WASHINGTON (Reuters) - Dinosaurs long dominated Earth's land ecosystems with a multitude of forms including plant-eating giants like Argentinosaurus, meat-eating brutes like Tyrannosaurus and weirdos ...

A small fossil jaw rests in Argentina’s national natural science museum in Buenos Aires. The fossil, only six inches long, carries backward-curving teeth shaped for gripping prey. Paleontologist ...

A newly described dinosaur whose fossils were recently uncovered is challenging the existing narrative, with evidence that the reptiles were present in the northern hemisphere millions of years ...

This period of time was when dinosaurs first evolved. The continents we live on today were part of one land mass that scientists call Pangaea. The climate was hot and dinosaurs flourished after the ...

A 19th century dinosaur drawing filled with the drama and chaos they exemplified during this early era of dinosaur discovery. Smithsonian Library and Archives See more of our coverage in your search ...