These rare deep-sea fish have a horrifying appearance with large mouths and lots of teeth to catch prey in the deep ocean.

For years, scientific divers at a research station in the Mediterranean Sea had a problem: at some point in every field season, local fish would follow them and steal food intended as experimental ...

The study was one of several that assessed the effects of climate change on three species of butterflies whose populations are declining.

Wild fish participated as willing volunteers in the study. Many turned up every day to experimental trials, and scientists could recognize some fish by physical characteristics.

With more time, the fish may learn to pay attention to more subtle human features, such as hands or hair. According to the ...

Fish in the wild can tell humans apart! A study found that seabream recognize individual divers, following those who feed them while ignoring others. For years, scientific divers at a Mediterranean re ...

It is easy to believe that the black seadevil anglerfish, with its gaping maw of razor-like teeth, a bioluminescent rod sticking out of its head and lidless eyes used to scan the deepest, darkest ...

Alert readers of the print edition noticed a puzzling photo caption in my last column. When writing about gull identification ...

Welcome to the “Which type of fish are you?” personality quiz! Fish come in all shapes, sizes, and colors, with a vast array of unique traits and characteristics. Just like fish, people come in all ...

Among the myriad creatures that populate our ocean, some stand out as having an outsized impact on the marine environment—shaping and maintaining habitats that themselves sustain countless other forms ...

"It definitely would throw things off balance.” Experts describe it as 'chaos' as animal behavior has begun to change: 'We ...