A bird brain from the age of dinosaurs reveals the roots of avian intelligence, according to a new study. The "one of a kind" ...

The identification of part of the fossilized remains of a so-called "terror bird" species in South America has given researchers new insight into the apex predators ...

Navaornis hestiae (center) documents a previously unknown intermediate stage in the evolution of the central nervous system between the earliest birds (like Archaeopteryx on the left) and living birds ...

New York (AP) — A tiny fossil skull nicknamed "Wonderchicken" is giving scientists a rare glimpse at early ancestors of today's birds. It may be the oldest known fossil from this group. With a face ...

A new study analyzed four sets of fossil footprints, including cat-like tracks in 29-million-year-old volcanic ash in Oregon.

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Millions of years ...

Around 45 million years ago, a 4.6 feet-tall (1.40 meters) flightless bird called Diatryma roamed the Geiseltal region in southern Saxony-Anhalt. An international team of researchers report on the ...

A research team led by Professor WANG Min from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences has discovered two bird fossils in Jurassic-era ...

Golden autumn sunlight glints through the sedges and shrubs of the tundra in northern Alaska. Winter is approaching, and soon the region will be buried under snow and ice. For the past three months ...