Neural tissue normally dies quickly without oxygen. Yet bird retinas—among the most energy-demanding tissues in the animal ...

Bird retinas survive without oxygen by burning sugar scientists solve 300 year mystery that could help treat human strokes.

New research shows ancient tropical oceans once held more oxygen than cooler regions, reshaping where early life could ...

More than 3.5 billion years ago, the Earth was not the hospitable world we know today. The atmosphere lacked oxygen, the seas ...

Biologists have finally solved a centuries-old mystery regarding how birds maintain sharp eyesight despite ...

“Looking at things at a very, very fast rate allows us to observe weird and wonderful phenomena,” Salamat says, calling the ...

A huge bar of iron has been discovered lurking inside the iconic Ring Nebula. The structure is enormous, spanning hundreds of ...

Billions of cigarette butts end up on sidewalks, beaches, and gutters each year. They are small, easy to ignore, and hard to ...

Chances are that all your encounters with frozen water—while trudging through slushy winter streets, perhaps, or treating yourself to cool summer lemonades—have been confined to one structural form of ...

If you've ever been frying up some juicy burgers and become worried at the sight of red liquid, don't worry, it's not blood.

Many people still don’t understand how protein works, why it matters or the best ways to get enough of it in their diet. Here ...