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 ...

For the first time, clumps of human cells called organoids were fully integrated with the brains of rats—and influenced their ...

New U.S. dietary guidelines promote eating full-fat foods and meats. But experts say nuts and seed oils are better sources of ...

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

Mayo Clinic researchers have developed a pioneering method to mend damaged hearts without open-heart surgery, an advance that could one day transform the treatment of heart failure ...

A newly developed imaging method blends ultrasound and photoacoustics to capture both tissue structure and blood-vessel function in 3D.

These days when it’s cold out and gets dark early, it can be tempting to hole up at home and keep to ourselves.

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

A new study into how different parts of memory work in the brain has shown that the same brain areas are involved in ...