noun (plural guppies)
A small live-bearing freshwater fish widely kept in aquaria. Native to tropical America, it has been introduced elsewhere to control mosquito larvae.
- Poecilia reticulata, family Poeciliidae
More example sentences
- The guppy is a small freshwater poeciliid fish native to Trinidad and parts of South America, and has been used extensively in laboratory based research, particularly in studies of sexual selection.
- Familiarity develops over a period of time; in both the guppy and the stickleback, it develops gradually over approximately 2 weeks.
- We know of no evidence that the behavior of domestic strains of guppy differs significantly from that of the wild type, and social learning of foraging behavior has been found in both laboratory and wild populations of the guppy.
1920s: named after R. J. Lechmere Guppy (1836–1916), a Trinidadian who sent the first specimen to the British Museum.