The light-sensitive tissue of birds’ eyes is not supplied with oxygen by blood vessels – instead, it powers itself with a ...

Climate change has a wide range of effects on wildlife. It affects seasonal migration, reproduction times, body size and mass ...

The great tit (Parus major) is the picture-perfect garden bird. With its colorful feathers and melodic, two-note whistle, it ...

Over the past half century, researchers have established that birds evolved from dinosaurs: specifically, the theropods, the ...

Today, the Environmental Protection Agency announced a recommitment to drastically reducing animal testing and eliminating ...

Sleep looks peaceful on the outside, but inside the brain, it is anything but ...

Are firehawks real or an Aboriginal myth? We explore the truth about raptors spreading wildfires and how they do it.

Antarctic penguins could turn on each other as a result of climate change, a study has found. The Adélie, gentoo and ...

As habitats and hosts keep vanishing, the bloodsuckers are turning to us for a free meal.

A new study finds that warming temperatures are causing Antarctic penguins to breed earlier, threatening some species with extinction by century's end.