All day Astronomy(@forallcurious):JUST IN🚨: Fertilization isn't a first-come, first-served deal. The egg attracts only specific sperm through chemical signals. A research team from the University of Manchester in the UK analyzed follicular fluid from 16 couples and discovered the fact that egg draws in up to 40% more of the preferred sperm. The selection criterion is compatibility with immune genes.

2026.06.26 00:13

JUST IN🚨: Fertilization isn't a first-come, first-served deal. The egg attracts only specific sperm through chemical signals. A research team from the University of Manchester in the UK analyzed follicular fluid from 16 couples and discovered the fact that egg draws in up to 40% more of the preferred sperm. The selection criterion is compatibility with immune genes.