Australia's tropical fish are heading south into cooler waters. These fish are not just visiting. They are settling into the milder "temperate" reefs that used to be too cold for them. As they do, ...

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.

Opah are usually native to more temperate waters, though not unseen in the Pacific Northwest It's o-fish-al: something incredibly rare happened in Oregon this week. On Wednesday, the Surfside Aquarium ...

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

Contrary to popular belief, many aquarium fish can live for decades with proper care, becoming long-term companions. Species like goldfish, clown loaches, oscars, angelfish, and plecos are known for ...