Ceviche can be made with a number of different ingredients, but there are some varieties of fish that are better than others.

What is a betta fish? Betta fish—also known as Siamese fighting fish—are among the oldest species of domesticated fish. Their scientific name, Betta splendens, combines two languages: Malay ...

Its Hawaiian name is lauwiliwili nukunuku ... remove crustacean parasites from their fellow reef fish. Another difference between the two species is their main habitat. The common longnose ...

Researchers are asking the Swiss public for help in naming two newly discovered Swiss fish species of the genus Barbatula.