Human eyes can’t decipher individual pixels from far away—this video shows why. A version of this story appears in the October 2018 issue of National Geographic magazine. Short for “picture ...

First, a brief refresher on some elementary biology. The human eye senses light and color thanks to the millions of rods and cones located in the retina. While rods handle low-light conditions and ...

A light-sensitive protein in the human eye has been shown to act as a "compass ... no conclusive evidence exists that humans can sense the Earth's magnetic field, and the find may revive interest ...

The human eye can see around 10 million different colours. Despite their much better sense of smell, dogs cannot see as many colours as humans can. Birds have very good eyesight and can see many ...

From snakes that use their tongues to “smell” to compound bug eyes that overwhelm human sight, visitors to Lake Metroparks’ Penitentiary Glen Reservation on April 18 got a chance to see how animals ...

Your eyes are specially designed to see what's around ... Your mouth and tongue, give you your sense of taste. So you can instantly tell what tastes bitter from what’s sweet.