British papers and television are hyperventilating over tales of a giant Asian catfish that they suggest may have "mutated" from a sluggish bottomfeeder to a lethal hunter of bathers in the waters between India and Nepal.

Nevada Department of Wildlife investigators have begun clamping down on the sale and possession of African Clawed Frogs being sold as mail-order tadpoles by a Florida-based marketing company.

Biologists at the US Geological Service report that breeding populations of Asian snakehead fish species are spreading, with sightings in many states.

An international team of researchers has discovered that many coral reef fishes have the unexpected ability to display red fluorescence in daytime conditions and in waters without natural red light from the sun. Heads, eyes, and fins are the body regions that fluoresce most intensely, and it is surmised that the flashing of color is important in silent underwater communication between aquatic species.

Selecting the right or wrong fish species for a home aquarium can spell success or dismaying failure. Here are 7 questions to ask before buying and stocking a new aquarium fish, with advice from Scott Michael, aquarium author and former aquarium store owner.