News tagged with adult males
For male weta, big is better
(PhysOrg.com) -- For a male tree weta, size really is everything. In six of the seven species in New Zealand the males all sport a distinctly large head, and the bigger the head, the better the chance of mating.
Nov 18, 2011 |
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Researchers achieve male fertility breakthrough
A Ben-Gurion University of the Negev researcher has achieved a significant breakthrough in male fertility, producing normal sperm from mouse cells.
Nov 15, 2011 |
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Sex hormones impact career choices
(Medical Xpress) -- Teacher, pilot, nurse or engineer? Sex hormones strongly influence people's interests, which affect the kinds of occupations they choose, according to psychologists.
Medicine & Health / Psychology & Psychiatry
Sep 01, 2011 |
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Low testosterone linked to varicoceles
As many as 15 percent of men have varicoceles, masses of enlarged and dilated veins in the testicles. There is new evidence that varicoceles, long known to be a cause of male infertility, interfere with the production of ...
Jun 16, 2011 |
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Researchers identify a critical growth factor that stimulates sperm stem cells to thrive
Researchers at the University of Pennsylvania School of Veterinary Medicine and Pennsylvania State University have identified for the first time a specific "niche factor" in the mouse testes called colony stimulating factor ...
Mar 06, 2009 |
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