PhysOrg Posted June 21, 2021 Share Posted June 21, 2021 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 Evolution, researchers from Stockholm University show that animal sperm evolution become supercharged only when sperm swim inside females.View the full article Quote Link to comment Share on other sites More sharing options...
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