Scientific illustrations Sketches Physical description .13 cu. ft. processed holdings See more items in Specimen Identification Sketches, Drawings, and Plates c. 1890-1918 [National Zoological Park (U ...

Professor Maria McNamara, leader of the UCC team and co-author of the study, told The Irish Times that the fossils were ...

Body coverings such as hair and feathers have played a central role in evolution. They enabled warm-bloodedness by insulating ...

During the Triassic period nearly 250 million years ago, a small reptile scurried after insects in the canopy of a lush ...

A small reptile from the Middle Triassic known as Mirasaura grauvogeli developed a crest structure shaped like feathers but with solid material.

The discovery, in a bizarre animal not closely related to birds, could change how scientists think about the origin of ...