All sperm articles
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Research
Impossible aerogel that reflects more visible light than it receives prompts scepticism
Material made from salmon sperm and gelatin touted as greener way to cool buildings
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Research
Engineered antibody that snags sperm could be an effective non-hormonal contraceptive
Approach could offer new method of contraception for women
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Podcast
Spermine and spermidine
Kiki Sanford explores how polyamines found in semen could be related to a long and healthy life