any of several slender tropical fishes of the genera Danio and Brachydanio in the carp family, Cyprinidae. Danios are hardy and swim actively about ...
Found on http://www.britannica.com/eb/a-z/d/7


The Danio genus comprises many of the species of danionins familiar to aquarists. The common name "danio" is used for members of the genera Danio and Devario. ==Taxonomy== The name "danio" comes from the Bengali name dhani, meaning "of the rice field". The native Bangla name for the fish is anju. The species Danio rerio was first described i...
Found on http://en.wikipedia.org/wiki/Danio
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