Recent fish and water crises have challenged these groups to set aside their competing interests and become unlikely allies.

The eye of the apple snail is unusually similar to a human eye—but, unlike human eyes, it can regrow itself if injured or ...

Unlike humans, apple snails can regrow their peepers if they are injured or amputated. To do this, the snails have developed ...

Infrared imaging helps us see things the human eye cannot. The technology—which can make visible body heat, gas leaks or ...

Medically reviewed by Andrew Greenberg, MD A cataract is a spot in your eye where the clear lens, the part that focuses light, becomes cloudy, making your vision blurry or dim. Cataracts develop ...

A patient went to the doctor for cataract surgery, but her physicians were surprised to find a huge, foreign mass under her ...