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, ...

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 ...

Atlantic mangrove fiddler crabs are found 200 miles north of their historic range, expanding due to warming ocean waters.

Contrary to popular belief, many aquarium fish can live for decades with proper care, becoming long-term companions. Species ...

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.

Chris Matthews and his family-of-six were rushed to hospital in Oxfordshire after cleaning coral from their home aquarium ...

After more than five years, the historic aquarium at Artis is nearly ready for visitors, with aquaria gradually being ...