News tagged with human sperm

Jumping genes discovery 'challenges current assumptions'

Jumping genes do most of their jumping, not during the development of sperm and egg cells, but during the development of the embryo itself. The research, published this month in Genes and Development, "challenges standard assump ...

dateJun 12, 2009 in Genetics
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Exposure to BPA associated with reduced semen quality

Increasing urine BPA (Bisphenol-A) level was significantly associated with decreased sperm concentration, decreased total sperm count, decreased sperm vitality and decreased sperm motility, according to a Kaiser Permanente ...

dateOct 28, 2010 in Health
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Whales are polite conversationalists

What do a West African drummer and a sperm whale have in common? According to some reports, they can both spot rhythms in the chatter of an ocean crowded with the calls of marine mammals -- a feat impossible for the untrained ...

dateOct 26, 2009 in Plants & Animals
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