Imagine a creature that can swim thousands of miles across the open ocean, crossing invisible lines that humans have drawn on maps, but is completely unaware of their existence. Now, picture dozens of ...

Tropical fish, specifically several species of Halichoeres wrasses, have been observed using tools, challenging the notion that tool use is exclusive to mammals and birds.

The aquarium, which opened in 1999, features more than 100 species, including diamondback turtles, southern and cow-nose rays, sea horses, pipe fish, and lionfish. Groman, a 225-pound loggerhead sea ...