News tagged with sexual selection
Color of robins' eggs determines parental care
A male robin will be more diligent in caring for its young if the eggs its mate lays are a brighter shade of blue.
May 14, 2012 |
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Battle of the sexes offers evolutionary insights
In a paper published May 3, in the journal Evolution, University of Cincinnati graduate student Karl Grieshop and Michal Polak, associate professor of biological sciences at UC, examine the role of genita ...
May 03, 2012 |
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Darwinian selection continues to influence human evolution
New evidence proves humans are continuing to evolve and that significant natural and sexual selection is still taking place in our species in the modern world.
Apr 30, 2012 |
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Sexy snacks: Study finds female mate searching evolves when mating gifts are important
In the animal world, males typically search for their female partners. The mystery is that in some species, you get a reversal -- the females search for males.
Sep 28, 2011 |
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Manipulative mothers subdue show-off sons
The gaudy plumage and acrobatic displays of birds of paradise are a striking example of sexual selection, Charles Darwin's second great theory of evolution. But new research shows that this powerful process may collapse when ...
Sep 12, 2011 |
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Brawn and speed make the grade during mate selection
Do more efficient and faster male birds win females over? New research from the United Kingdom suggests that the rock ptarmigan, the Arctic cousin of the grouse, does. University of Manchester researchers ...
Sep 12, 2011 |
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The burly bird catches the girl
While the early bird might catch the worm, it's the quick bird that lands the ladies, according to new research into the running performance of an Arctic cousin of the grouse.
Aug 17, 2011 |
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A happy life is a long one for orangutans
New research has shown that happier orang-utans live longer which may shed light on the evolution of happiness in humans.
Jun 29, 2011 |
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Female mate choice enhances offspring fitness in an annual herb
In many organisms females directly or indirectly select mates (or sperm) and potentially influence the fitness of their offspring. Mate choice and sexual selection in plants is more complex in some ways than ...
Jun 27, 2011 |
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For peacocks, the eyespots don't lie
Male peacock tail plumage and courtship antics likely influence their success at attracting and mating with females, according to recent Queen's University research.
Apr 27, 2011 |
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Female deer confirm bigger is not always better when choosing a mate
Female deer do not always choose the bigger and dominant males to mate with, scientists from Queen Mary, University of London and Hartpury College have found.
Apr 06, 2011 |
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Polygamy hurt 19th century Mormon wives' evolutionary fitness
Polygamy practiced by some 19th century Mormon men had the curious effect of suppressing the overall offspring numbers of Mormon women in plural marriages, say scientists from Indiana University Bloomington ...
Feb 22, 2011 |
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Research finds men with macho faces attractive to fertile women
(PhysOrg.com) -- When their romantic partners are not quintessentially masculine, women in their fertile phase are more likely to fantasize about masculine-looking men than are women paired with George Clooney types.
Medicine & Health / Psychology & Psychiatry
Jan 10, 2011 |
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Brain size and a trip to Disneyland: How parental concerns could increase the size of our creative brains
Evidence from Disneyland suggests that human creativity may have evolved not in response to sexual selection as some scientists believe but as a way to help parents bond with their children and to pass on traditions and cultural ...
Nov 15, 2010 |
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Female fish flaunt fins to attract a mate
For the first time, biologists have described the evolution of the size of a female trait which males use to choose a partner. The research, published in the open access journal BMC Evolutionary Biology, shows ...
Oct 08, 2010 |
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