Fish, of course, are not humans, but they allow a fair comparison, Salinas said. And her work suggests that if fish have microbes living in their brains, it’s possible we have them, too.

For a long time it was thought that fish don't sleep, and truthfully, they don't sleep like we do, but they do engage in regular periods of rest.

A groundbreaking study of 7,000-year-old exposed coral reef fossils reveals how human fishing has transformed Caribbean reef ...

Researchers documented 34 instances of purported prey-sharing behavior, which suggests orcas may be altruistic and capable of ...

In a baffling show of generosity, killer whales across the globe are giving fish to humans—and scientists are racing to ...

An unassuming freshwater fish contains the longest genomic sequence ever discovered, measuring in at 30 times the length of the human DNA chain.

Sharks are an apex predator of the oceans and don’t shy away from taking a bite out of most creatures except for one that can ...

Orcas have long been revered for their intelligence, adaptability, and group-hunting strategies. But one scientific review ...

Spanish researchers recently shared images of a deep-sea anglerfish swimming horizontally in shallow waters, capturing a rare moment with a fish not often seen by humans.

Shrimp, fish, and insects are farmed by the hundreds of billions. Is it an ethical nightmare or the cost of feeding humanity?

Despite widespread human impacts on wildlife diversity worldwide, many fish communities on the seafloor have maintained their ...

James Gunn's Creature Commandos gets the DC Universe off to a colorful, encouraging start.