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image: Semen Says

Semen Says

By | July 1, 2014

Scientists report for the first time that a snail’s seminal fluid proteins can suppress the mating success of the male side of its hermaphroditic partner.

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image: Spiders Try to Ensure Paternity

Spiders Try to Ensure Paternity

By | June 11, 2014

Male dwarf spiders deploy sperm-blocking plugs to thwart the reproductive chances of their mate’s subsequent suitors.

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image: Female Pigs May Sense Sex of Sperm

Female Pigs May Sense Sex of Sperm

By | May 21, 2014

The oviducts of pigs exhibit different gene expression profiles depending on their exposure to sperm with either an X or a Y chromosome, a study shows. 

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image: Coming to Terms

Coming to Terms

By | November 1, 2012

New noninvasive methods of selecting the most viable embryo could revolutionize in vitro fertilization.

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image: A Gamete Matchmaker

A Gamete Matchmaker

By | March 22, 2012

Chemical cues dispersed by mussel eggs may attract sperm that are their perfect match.

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image: Double the Mutations

Double the Mutations

By | January 30, 2012

Irradiated sperm of young male mice induce mutations in eggs upon fertilization, a phenomenon that may pose risks for the children of cancer survivors.

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