Scientists captured video of orcas ramming into sunfish with such force that the fish exploded. The behavior may be for fun as well as for feeding, they report.

Never before seen video shows the moments two orcas smash a sunfish into pieces. NBC News' Sam Brock talks to biologist and ...

Fish from the same species can evolve their sense of smell and display individual foraging 'personalities' to successfully find food in different habitats, according to new research. "With more than ...

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 ...

Scientists have shown that light pollution -- especially light in the blue spectrum -- can alter the behavior of fish after only a few nights, and have knock-on effects for their offspring. Scientists ...