Birds evolved from small feathered dinosaurs during the Jurassic Period ... was smaller than in today's avian species and ...

Navaornis fills a ~70-million-year gap in our knowledge of the evolution of the unique bird brain. Navaornis hestiae (centre) ...

Birds descended from the dinosaurs, but researchers have known relatively little about how the bird's brain took shape over ...

Researchers hope the "exquisitely preserved" fossil will cast new light on an enduring mystery in paleontology.

Researchers, however, can have a keen eye and spot the animals even tucked in their hiding place. In the forests of Ecuador, ...

Species like indigo buntings ... Highly social for a raptor, they nest in loose colonies and often forage in small flocks." ...

The rusty-spotted cat (Prionailurus rubiginosus) is the smallest cat species in the world. They weigh only 0.9 to 1.6 kg! They inhabit the deciduous forests, tropical rainforests, and scrublands of ...

The smallest mature female of this species was found to be just 7.9 millimeters (0.31 ... the teeny tiny crown appears to ...

State officials are asking the public's input on whether to grant the species protection under the California Endangered ...