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Physiology
In mice, older males are preferred mates
March 31st, 2003
Older males may be preferred mates because their longevity indicates that they possess "good" genes, suggest results of a study conducted in mice. First author Dr. K. Osada, senior author Dr. Gary Beauchamp, and their colleagues investigated how animals might judge the age of a potential mate. They reported their findings in the Proceedings of the Royal Society of London, Series B. The study demonstrated that as male mice age, several odorous compounds in their urine change in relative concentration, thereby permitting trained mice to discriminate the scent of two individuals based solely on their differing ages. The...
Source: Life Science Weekly (2003-03-31)
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