A woman’s eggs choose lucky sperm during last moments of conception, study finds | CNN

The female reproductive system has a way to pick which sperm will win the race to contraception, a new study has found. And here’s the extraordinary finding: A woman’s egg doesn’t always agree with her choice of partner.分類：biology, fertility and infertility, genetics, health and medical, medical fields and specialties, science, sexual and reproductive health, reproductive technology...