An atavism is a trait from a distant evolutionary ancestor that has reappeared in a modern-day creature, like a whale with legs. A whale with legs? Take this quiz and learn about atavistic whales and other animals.
Fish culture is the breeding, rearing, and distributing of fish. Fish culture, also called aquaculture, fish farming, and pisciculture, is important in maintaining the supply of food and game fishes, and in extending the area in which they may be caught. See more »