Contrary to popular belief, fish are surprisingly intelligent. Discover the fascinating studies showing fish can remember ...

Some aquarium buddies are much more interactive than you'd expect—they follow their owners around, beg for food, and even learn to recognize faces. This article dives into pet fish that actually know ...

If you're in the throes of setting up a home aquarium, you may be curious about the types of freshwater fish you can keep as a pet. Often the first fish that springs to mind is a goldfish, but there ...

Goldfish don’t have stomachs. Their digestive tracts are straight and simple, which means food passes through quickly—and not ...