Here are five photos that beautifully illustrate why fish choose to group up. Striped eel catfish displaying schooling behavior. Such a group can be remarkably silent, even ... [+] though it might ...

A research team from Osaka Metropolitan University showed fish images of themselves, but the pictures were doctored so that stains representing parasites appeared on their throats. The fish tried ...

an adorable-yet-deadly mini octopus and a group of alien-looking fish babies fused to eggs were some of the stars of a recent ...

“When people are on vacation, or they’re diving, or they’re swimming,” Johnson says, “they upload all of their observations and fish photos, and we’ve been using that to scan across large sections of ...

Fish eggs drifted like tiny lanterns ... The visible trash, along with heartbreaking images of its impact on everything from turtles to birds to whales, has generated a public outcry.