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Skeleton regulates male fertility

Researchers at Columbia University Medical Center have discovered that the skeleton acts as a regulator of fertility in male mice through a hormone released by bone, known as osteocalcin.

dateFeb 17, 2011 in Medical research
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Unattractive guppies have better sperm

( -- Scientists studying tropical guppies have discovered that the less colorful and attractive males have better quality sperm, while the attractive fish invest in their appearance at the expense of sperm quality.

dateJun 07, 2010 in Plants & Animals report
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