Those who've wondered what lurks in the dark depths of the ocean have a new answer. Scientists working off the coast of Japan say they've managed to capture images of the deepest-swimming fish ever ...

Fish from the same species can evolve their sense of smell and display individual foraging 'personalities' to successfully find food in different habitats. Fish from the same species can evolve their ...

Swimming in schools makes fish surprisingly stealthy underwater, with a group able to sound like a single fish. The new findings by Johns Hopkins University engineers working with a high-tech ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Schooling fish including zebrafish, rainbowfish, and opahs/moonfish ...

Is It a Quirk or a Cry for Help? First things first don’t panic. Seeing your fish swimming sideways can be alarming, but the good news is, it’s often treatable. The behavior is usually a symptom, not ...

A new study of giant danios (not pictured) suggests schools of fish save 79 percent more energy in turbulent conditions than fish swimming individually. Gordon Firestein via Wikimedia Commons under CC ...

Swimming in schools has massive energy-saving benefits for fish. A study in “water tunnels” has found that fish use half as much energy swimming at high speeds if they are in a school rather than ...

A fish has been captured by researchers swimming at never-before-recorded depths of over five miles below the ocean’s surface off the coast of Japan, researchers announced. The unknown species of ...