Sentences with phrase «male guppies»

Male guppies will also mate with females of another species called Skiffia, which have no defences against the damage the gonopodium can cause.

That's the conclusion of a new study of asymmetric male guppies flirting with females in adjoining tanks, says Mart R. Gross of the University of Toronto.

Male guppies mate using a hooked appendage called a gonopodium.

While female guppies are lured by bright colors, predators are more likely to see, and attack, flashier male guppies.

Ecologists have shown that organisms in the wild can evolve rapidly — just 4 years for male guppies to become 15 % heavier — when placed into new environments (Science, 28 March, p. 1934).

Males guppies care about food less, which could explain why they did not perform well on the tests.

Good looks are nothing to sniff at, but if you're a male guppy in a murky stream, your body odor may be more important for attracting mates.

Not exact matches

Female guppies prefer colorful males but don't like their smell.

In one of the first studies to look at the cognitive demands of selecting a mate, female guppies with big brains preferred more colourful males — a trait linked with good health and foraging ability.

The view nowadays is that ornaments such as the peacock's stunning train, the splendid plumes of birds of paradise, bowerbirds» love nests, deer antlers, fins on guppies and just about everything to do with the mandarin goby are indications of male quality.

Unlike the majority of fish in which females lay eggs that are later fertilized by males, live - bearers — which include species such as mollies, platies, guppies, swordtails and mosquitofish — have internal fertilization.