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

The discovery fundamentally changes the understanding of a structure in the avian eye that has been misinterpreted for centuries.

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

Allison Wilcox tells PEOPLE that she "never once stopped holding my breath waiting to hear that heartbeat” ...

For two days, the patient lived as a human being with no lungs, stabilized by a machine that breathed and buffered his ...

Vaults are mysterious cellular structures that can be genetically engineered to store information about a cell’s history.

The protection of non-ferrous metals, particularly copper and its various alloys, remains a critical necessity in modern ...

This unexpected ability opens the door for scientists to stimulate cellular mitosis and improve heart function after an ...

New evidence reveals adult human hearts can regrow muscle cells after myocardial infarction, opening new possibilities for ...

The rehearsal, scheduled to run through early February 3, is meant to stress-test both machines and humans behind NASA’s ambitious return to deep space exploration.

Despite the eight-hour rule, some airlines require pilots to have a longer “bottle-to-throttle” wait time. This includes ...