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.

A new species of Amazonian fish, Pyrrhulina punctata, has been discovered in Peru, revealing previously unknown biodiversity ...

A slow-motion invasion Tropical fish travel poleward via ocean currents. On Australia's east coast, the fish typically hitch a ride on the strengthening East Australian Current as it pushes warm water ...

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

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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.

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

Senior Lecturer in Neuroscience and Sleep Science, University of Surrey If 1,500 captive mammals suffocated to death in a zoo, their suffering would spark an outcry. So when a Berlin hotel aquarium ...