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

Initially stacked benzene layers increase fluorescent color change drastically when exposed to pressure, suggesting new ways to design the pressure sensors used in machinery and medical devices.

Navigating the world is no mean feat, especially when the world pushes back. For instance, airflow hitting a fly on its right ...

A new study explains how birds maintain sharp eyesight despite their retinas lacking blood vessels, finally resolving a ...

Pulmonary function tests are a group of noninvasive breathing tests that measure how much air your lungs can hold, how ...

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