News tagged with secondary sexual traits
Why do animals, especially males, have so many different colors?
(PhysOrg.com) -- In new research, UCLA scientists claim that "secondary sexual traits" like coloring may let animals know which species to avoid fighting.
Oct 31, 2009 |
4 / 5 (7) |
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Search results for secondary sexual traits
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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The court will now call its expert witness: the brain
(PhysOrg.com) -- Will advances in neuroscience make the justice system more accurate and unbiased? Or could brain-based testing wrongly condemn some and trample the civil liberties of others? The new field ...
Medicine & Health / Neuroscience
Nov 20, 2009 |
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How 'secondary' sex characters can drive the origin of species
The ostentatious, sometimes bizarre qualities that improve a creature's chances of finding a mate may also drive the reproductive separation of populations and the evolution of new species, say two Indiana University Bloomington ...
Biology /
Aug 25, 2008 |
4.4 / 5 (5) |
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Manes, trains and antlers explained
For Charles Darwin, the problem of the peacock's tail, in light of his theory of natural selection, was vexing in the extreme.
Biology /
Aug 21, 2008 |
4.2 / 5 (19) |
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Testosterone and body fat are controlled by the same genes
Genes that control percentage of body fat are also responsible for circulating levels of testosterone in men, research published in the latest edition of Clinical Endocrinology shows. The research shows a 23% overlap between ...
Aug 05, 2008 |
4.4 / 5 (8) |
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Larger horns a gamble for young Soay sheep
When it comes to winning mates, larger horns are an asset for male Soay sheep. But those that grow them may be putting their young lives on the line, according to a study published online on May 15th in Current Biology.
Biology /
May 15, 2008 |
2.7 / 5 (3) |
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Male seahorses are nature's Mr. Mom, researchers say
Male seahorses are nature’s real-life Mr. Moms – they take fathering to a whole new level: Pregnancy. Although it is common for male fish to play the dominant parenting role, male pregnancy is a complex process unique to ...
Biology /
May 01, 2008 |
4.8 / 5 (4) |
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Over one-third of former American football players had sexual relations with men, study says
A study of former high-school American Football players has found that more than a third said they had had sexual relations with other men.
Oct 29, 2007 |
3.4 / 5 (26) |
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Lift More Weights, Get More Mates: Resesarch Shows Muscular Men Have More Flings, Partners, Affairs
Women don't just like men with muscles — they go for them. Men who are more muscular than average are much more likely to have short-term affairs and multiple sex partners than their scrawnier peers, according to new UCLA ...
Medicine & Health / Psychology & Psychiatry
Jul 09, 2007 |
4 / 5 (49) |
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Bigger horns equal better genes
Size matters. At least, it does to an alpine ibex.
Biology /
Jun 06, 2007 |
4.3 / 5 (4) |
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List of search results for secondary sexual traits
