For years, we suspected that Alvarezsaurids underwent a rare process of evolutionary miniaturization directly coupled to a ...

In Argentina, an almost intact dinosaur fossil was unearthed that is estimated to have weighed less than 1 kilogram in life. It is believed to be the smallest dinosaur species discovered in South ...

For decades, scientists have traced the connection between small theropod dinosaurs and modern birds. Fossils such as Archaeopteryx reveal a mix of feathers, claws, and skeletal traits that blur ...

Southern Africa is world renowned for its fossil record of creatures that lived in the very distant past, including dinosaurs. But, about 182 million years ago, a huge eruption of lava covered much of ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...

Paige dePolo does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

A newly discovered raptor had a knobby bump on its head, suggesting that, like some larger dinosaurs, it engaged in competitive head bashing. By Jack Tamisiea Head-butting was all the rage at the end ...

When you hear the word "dinosaur," the first thing that might spring to mind is a hulking skeleton like Sue the T rex in Chicago's Field Museum or Sophie the Stegosaurus at the Natural History Museum ...

Dec. 16 (UPI) --More than 16,600 footprints left by carnivorous dinosaurs of different sizes that walked, ran and even swam about 66 million years ago have been identified at the Carreras Pampa site ...

This paper elucidates the ecological context of two theropod dinosaurs of differing body sizes inhabiting the lakeshore region of Otog Banner, Inner Mongolia. The larger theropod exhibited a walking ...

Legend once had it that the huge, three-toed footprints scattered across the central highlands of Bolivia came from supernaturally strong monsters — capable of sinking their claws even into solid ...