Climate change has now become one of the biggest threats to ecosystems globally, as global cycles that have helped species thrive for centuries have shifted. Birds in particular, for their elaborate ...

What really did come first--the chicken or the egg? Birds' reproductive biology is dramatically different from that of any other living vertebrates, and ornithologists and paleontologists have long ...

Fossil by fossil, paleontologists have traced birds back to their dinosaur ancestors. As they’ve done so, traits once thought to be distinct characteristics of avians – such as feathers and air sacs – ...

As winged dinosaurs underwent a series of evolutionary changes during the transition into Aves, or birds, one pivotal transformation was the appearance of a single-ovary reproductive system. "The most ...

Looking for a bird's-eye view of human impact? A new study published in the journal Nature provides the most comprehensive picture yet of how human noise and light pollution affect birds throughout ...

Streetlights and the light from shopping centers, stadiums, and houses turn night into day, a "loss of night" that is shifting the internal clocks of birds worldwide. Now, scientists are trying to ...