A clever tropical fish has flipped how biologists are thinking about memory, brains and visual recognition in the animal kingdom. Here’s how.

Wild cod is a popular fish with rounder flakes than salmon, explains Swan. It has a mild, delicate flavor, making it one of the best fish to eat if you're new to seafood. Cod also has a noteworthy ...

Fish make hanging motionless in the water column look effortless, and scientists had long assumed hovering was a type of rest. Now, a new study reveals that fish use nearly twice as much energy when ...