guppy

(redirected from guppies)
Also found in: Dictionary, Thesaurus, Idioms, Encyclopedia, Wikipedia.

guppy

a small aquarium fish up to 1.5 inches long in many color combinations. Called also Poecilia reticulata.
References in periodicals archive ?
Genetic testing in one stream revealed that guppies fathered offspring up to two generations after they died.
Unlike the colorful guppies sold in pet stores, female guppies in the wild do not have bright coloration like the orange patches.
In the first half of Experiment 2, the students placed individual guppies in 10-gallon tanks, which were allowed 5 minutes to acclimate to their new surroundings.
As in many vertebrates, it is the males that dress to impress; male guppies have bright colour patterns they use to attract females, whilst females are a dull brown colour.
Sexually mature guppies perform courtship behavior almost continuously during the light hours, all year round.
To test for effects on aging, Reznick and his colleagues raised the offspring of guppies from high- and low-predator waters in the laboratory for two generations.
The researchers placed the fishes on low food for two weeks followed by a return to normal food levels, and found that female guppies that underwent compensatory growth as juveniles produced less offspring than would be expected for their body size.
Yen calculated that copepod vortices didn't swirl enough for males to detect them, but guppies leave much bigger eddies.
They compared the two types of guppies because earlier work showed that the little freshwater fish could evolve rapidly from a downstream "type" to an upstream "type.
Andrews in Fife, Scotland, report that promiscuity benefits female Trinidadian guppies by reducing gestation time and yielding offspring with better survival skills.
The other contained fish that occasionally snack on guppies.
A complexity of flirtation, known as mate copying, may be common to both guppies and college students.