For decades, ecologists have known that how a species looks or eats affects its environment. But a new study by researchers ...

"Accumulating in living organisms." Scientists issue warning after observing concerning change in fish behavior: 'We cannot ...

The U.S. government is mounting an emergency response in an effort to save a unique and endangered fish found off the coast of Florida. The details are strange. The National Oceanic and Atmospheric ...

University of Otago—Ōtākou Whakaihu Waka scientists have discovered that it takes mere minutes for a species of sex-changing fish to develop dominant behavior after a change in the pecking order. In a ...

Fish are changing how they search for and consume prey in warmer waters, with models suggesting that extinctions will become more likely due to this behavior change, according to a new study published ...

Before squaring up for a fight, some fish check themselves out in the mirror to make sure they're big enough. This strange behavior was seen in bluestreak cleaner wrasse (Labroides dimidiatus), who ...

Evolutionary biologist Dr. Katie Peichel has spent much of her career studying two types of fish. One lives in the ocean, traversing through empty swathes over flat, open sand, where larger, predatory ...

This article was originally featured on Undark. The world’s aquatic habitats are a heady brew of pollutants. An estimated 14 million tons of plastic enter the ocean as trash each year. Further inland, ...

Benzodiazepines are a highly effective group of pharmaceutical drugs that help millions of people cope with anxiety, insomnia, and panic disorders each year. These drugs work by binding to receptors ...

A shrimp scrap drifted down the face of a mirror, and a small reef fish tracked it like it was watching a slow-motion experiment. The fish, a blue-streak cleaner wrasse, had carried the shrimp upward, ...

Biologists have characterized new, unknown photoreceptors from the bioluminescent flashlight fish Anomalops katoptron. The photoreceptors known as opsins allow the fish to detect light with a specific ...