Some aquarium buddies are much more interactive than you'd expect—they follow their owners around, beg for food, and even ...

Scientists must journey to remote islands in the middle of the Bering Sea, braving uncertain conditions, to reach the ...

Near a village in northeastern India, a “dwarf”-like creature with a “large” mouth swam through the river — or tried to, at least. But something pulled it out of the water, moved it around and dropped ...

Biologist Reports from the Pennsylvania Fish and Boat Commission help anglers identify fish populations and sizes in lakes and waterways across the state.

Although crayfish are considered low-maintenance pets, low-maintenance doesn’t mean no-maintenance. These freshwater ...

Deep-sea fish adapt to some of the most extreme conditions on Earth. New research analyzing their evolution finds the same mutation across fish species that have evolved on separate timelines — ...

When a dog isn't right for your lifestyle, look for other pets that are just as fascinating but are cheaper and easier to ...