Birds have developed a unique evolutionary solution to ensure the survival of males—a powerful microRNA. This tiny gene ...

Researchers calculated the flight ability of more than 80 ancient cicada species to analyze their evolution over time.

Bird Evolution: Few subjects in evolutionary theory have posed such intriguing puzzles for so long as the origin of birds. Evidence of avian beginnings has been elusive in the fossil record ...

“Birds are petite and they are relatively morphologically constant. They don’t experience crazy evolution like lizards. Most all birds have their wings and a pair of legs,” says Navalón.

What we do know is that bird evolution was complicated. Many characteristics of birds seem to have evolved multiple times in dinosaurs, across numerous families. One of the main traits of birds today, ...

The first birds diverged from two-legged theropod dinosaurs around 165 million to 150 million years ago, during the Jurassic period, according to a 2015 paper in the journal Current Biology.They ...

The fossil skeleton of a newly discovered dinosaur species was found in a pose suggesting it slept like modern birds. This sleeping behavior may have been more common than expected among non-avian ...

Living birds are technically a specialized group of dinosaurs, and the model indicated that the common ancestor of all the birds alive today had the iridescent feathers that still glitter across ...

A dinosaur-like fossil discovered in China is providing paleontologists with clues about the evolution of birds. The unusual bird named Fujianvenator prodigiosus was found in China's Fujian ...

Scientists have uncovered a surprising piece of the puzzle in the evolution of flight: a tiny wrist bone in certain dinosaurs ...