Scientists are seeing tropical fish in Nova Scotia with more frequency, with their arrival prompting concerns about what their presence could mean for local species down the road.

For decades, scientists used a mirror experiment to explore whether animals could recognize themselves. In that test, ...

Every aquarium owner hopes for one thing. A perfectly clean tank that somehow takes care of itself. It sounds ideal, but ...

In this video, we join commercial aquarium fish divers on an underwater mission to catch tropical fish and invertebrates from the ocean. Witness how these divers safely and legally collect marine life ...

A tiny, yellow-and-orange juvenile warty frogfish rests on a coral-like object in a habitat at Chicago's Shedd Aquarium. A tiny fish is making big waves at Shedd Aquarium as animal caretakers ...

The baby fish, which is roughly the size of a pea, was raised from a surprise egg mass discovered last fall ...

There's a ton of fish out there that would work perfectly well for your home fish fry, and yet you probably haven't given them a try. Here are several underrated fish to try at your next home fish fry ...

Low oxygen and rising carbon dioxide in mangrove waters may shrink critical nursery habitat for young fish and threaten ...

Wealthy homeowners are spending hundreds of thousands and sometimes millions to install and maintain luxury aquariums. ‘It’s my happy place.’ ...

Discover Florida’s only living barrier reef at Dry Tortugas National Park, where crystal-clear waters let you snorkel among tropical fish, sea turtles, and coral reefs.

Reef fish in different oceans often develop similar color patterns because evolution explores the same set of biological ...

Most people living in Hawaiʻi agree that reef fish should not be captured and sold as aquarium pets. Last year, a poll showed that 84% of Oʻahu and Hawaiʻi Island residents support a ban. In today’s ...