With their imposing size and austere presence, it's best to keep your distance from gigantic goliath groupers!

Sky blue, ocean blue, blueberries, my eyes! Despite seeing blue all around us, blue is actually the least common color in ...

There are hundreds of urchin species, and they’re found in every ocean on Earth, from the intertidal zone to more than four ...

Tucked under the stones and shells of the shallow waters off Spain, one creature has the ability to completely alter its size. Up to nearly 10 inches long, the animals have the ability to contract ...