sperm
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Here's Why Fruit Flies Have Giant Sperm
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Condomless Male Birth Control Could Be Available By 2018: Here's What You Need To Know
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On-Off Switch For Sperm Could Be Key To Unisex Birth Control Drug
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Sperm Flock Together When Swimming In Gloopy Fluid
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Mouse Sperm From Stem Cells May Pave Way For Infertility Treatment
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Can Keeping Mobile Phones In Pockets Make Men Infertile?
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Carpenter Invents Male Birth Control That Can Turn Off Flow Of Semen
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High-Fat, Low Protein Diet Affects RNA Level Of Sperm
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Science Images Of The Week: Songbirds, Stars, Storms And Sperm
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Fruit Fly Has Sperm 20 Times Longer Than Its Own Body
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'Smart But Shy' Types Are What Women Look For In Sperm Donors
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Snake-Like Movement Of Sperm May Help Improve Fertility Treatments
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