goldfish
The Goldfish (Carassius auratus) is a freshwater fish in the family Cyprinidae of order Cypriniformes. It is commonly kept as a pet in indoor aquariums, and is one of the most popular aquarium fish. Goldfish released into the wild have become an invasive pest in parts of North America.Native to China, the goldfish is a relatively small member of the carp family (which also includes the Prussian carp and the crucian carp). It was first selectively bred for color in imperial China more than 1,000 years ago, where several distinct breeds were developed. Goldfish breeds vary greatly in size, body shape, fin configuration, and coloration (various combinations of white, yellow, orange, red, brown, and black are known).
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Trivia Goldfish have insanely good memories
Goldfish have insanely good memories Do friends tell you that you have "the memory of a goldfish?" Well, it's not as mean as you may think. Goldfish have conditional memory learning that has proven across multiple studies to last many months. It's very similar to the way a dog remembers things...