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News tagged with adult males
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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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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