Tuesday, March 29, 2011

Domestic Goldfish

Pearl scale Goldfish
Phylum : Chordata
Class : Actinopterygii
Order : Cypriniformes
Family : Cyprinidae
Genus : Carassius
Species : C. auratus auratus

Length : Up to 12in (30cm)

IUCN Status : Not Listed

Did you know that  Goldfish were one of the first fish species to be domesticated? It happened nearly 1,500 years ago in China, where they took rather plain looking Asian Carp and bred them down. They spread to Japan in the 15th century, and were in Europe by the late 17th. Domesticated Goldfish can now be found all around the world!

There are dozens of different Goldfish varieties, coming in all sorts of shapes and sizes. Orange, black, white, and speckled are all common colors. Tail shape is also highly variable, with some being short and blunt and others growing quite long and flowing.

Shubunkin Goldfish
Did you know that there is a reason why Goldfish nibble at tiny bits of food all day? This is because they don't actually have a stomach in which to store food during digestion. Because of this, they have to eat very small amounts several times a day.

Another interesting fact about these popular fish is that they don't actually have three second memories. This misconception has been debunked by scientists and even by enterprising young Australians. Goldfish have the ability to store and recall information, and are able to recognize food and predators just like any other creature.

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