Scientists have debunked the belief that using tools is unique to mammals and birds, after documenting tropical fish that smash shellfish against rocks to open and eat the meat, in a fascinating new ...

Today in research: fish have their caveman epiphany, a mosquitoe trap, and women have better immune systems.

Sea otters are one of the few animals that use tools to access their food, and a new study has found that individual sea otters that use tools -- most of whom are female -- are able to eat larger prey ...

Fish tanks may look easy to care for, but the process is anything but passive. Behind the glass, delicate ecosystems depend ...

The intelligent use of environmental tools has been observed in tusk fish for the first time. Photos show an individual tusk… ...