News tagged with guppies
Evolution Impacts Environment, Challenging Traditionally Held View, Study Finds
(PhysOrg.com) -- Biologists have known for long that ecology, the interaction between organisms and their environment, plays a significant role in forming new species and in modifying living ones. The traditional ...
Feb 01, 2010 |
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Single wild female
(PhysOrg.com) -- The release of a single female guppy into the wild can generate entire new populations, even with no males present, according to new research.
Sep 22, 2011 |
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They call it 'guppy love': Biologists solve an evolution mystery
Guppies in the wild have evolved over at least half-a-million years — long enough for the males' coloration to have changed dramatically. Yet a characteristic orange patch on male guppies has remained ...
Nov 23, 2011 |
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Females choose sexier friends to avoid harassment
(PhysOrg.com) -- Scientists have observed a strategy for females to avoid unwanted male attention: choosing more attractive friends. Published today (7 December) in the journal Proceedings of the Royal So ...
Dec 07, 2011 |
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Evolution can occur in less than 10 years
How fast can evolution take place? In just a few years, according to a new study on guppies led by UC Riverside's Swanne Gordon, a graduate student in biology.
Jun 11, 2009 |
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Poor start in life need not spell doom in adulthood
Does the environment encountered early in life have permanent and predictable long-term effects in adulthood? Such effects have been reported in numerous organisms, including humans.
Oct 21, 2010 |
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Unattractive guppies have better sperm
(PhysOrg.com) -- Scientists studying tropical guppies have discovered that the less colorful and attractive males have better quality sperm, while the attractive fish invest in their appearance at the expense ...
Jun 07, 2010 |
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College students, fish show surprising similarities in numerical approximation
Fish are as good at evaluating numerical ratios as college students are, says a study published in the Feb. 15 issue of the open access journal PLoS ONE.
Feb 15, 2012 |
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When evolution is not so slow and gradual
What's the secret to surviving during times of environmental change? Evolve…quickly.
Jun 02, 2009 |
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From arc to park
(PhysOrg.com) -- Parasite infections are an important threat in conservation biology, particularly to individuals that have been bred in captivity for release into the wild.
Jan 05, 2010 |
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