New research suggests that the longer sperm are stored before ejaculation, the lower their quality – with implications for men trying to conceive and IVF treatment.
Articles on sperm quality
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Our new research has discovered what gives human sperm the strength to succeed in the race to fertilise the egg – and it’s all to do with their tails.
Inbreeding and male infertility could be impeding the recovery of one of New Zealand’s threatened birds - the stitchbird, or hihi. Hihi sperm might hold the answer, and help raise funds for conservation.
The release of TV program The Handmaid’s Tale and a study on male sperm numbers have left some worried about the future of human fertility.
Top contributors
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Senior Lecturer, University of Newcastle
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Mathematician, University of Bristol
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Research fellow in conservation genetics, University of Otago
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Lecturer in Evolutionary Biology, University of Oxford
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PhD Candidate, Department of Biology, University of Oxford
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Research Fellow, Department of Biology, University of Oxford