"Spermcasting represents a mix of internal and external fertilizations, which gave us the opportunity to see what part of the fertilization process influenced sperm evolution," says John Fitzpatrick, ...
Purdue researchers created a contraceptive vaccine that sharply cuts fertility to help manage wildlife overpopulation ...
Sperm size varies dramatically among different animal species. But why is sperm size so variable when they share the same job - to fertilize eggs? In a new article published in Nature Ecology and ...
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