Sperm cells compete in a never-ending race _澳门葡京手机版app下载

Yngve Vogt
2014-05-12T08:30:59.000Z
type:structured-article
www.uio.no

Promiscuous bird species have less variation in their sperm cells. The explanation is the fierce competition that occurs between sperm cells when more than one male mates with the same female.