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 ...

Rare incidents where ventilator or heavily sedated patients react during emergencies are rooted in well-documented survival ...

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

The long-term effects of a Vitamin B12 deficiency in women include not only chronic tiredness but also a negative impact on ...

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

Scientists have uncovered a surprising reason why some chronic wounds refuse to heal, even when treated with antibiotics. A ...

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

Researchers from the California Institute of Technology (Caltech) and the University of Southern California (USC) have developed a hybrid imaging system that provides three-dimensional, colour-coded ...

The Arctic ground squirrel survives conditions that would cause irreparable brain damage in almost any other mammal on the ...