A small freshwater fish with striped markings, commonly kept in aquariums, including species like the zebra danio.
From a genus name in ichthyology, possibly derived from Indian origins since danios are native to South and East Asia. The term became standardized in aquarium terminology.
The zebra danio is a favorite among aquarium hobbyists because it's hardy and its stripes change as it ages — it's practically a living experiment in how fish develop and respond to their environment.
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