Sentences with phrase «human sperm tails»
A team led by Yuriy Kirichok at the University of California in San Francisco discovered a pH - sensitive channel in human sperm tails that explains why they are sluggish before ejaculation but quickly pick up speed.
https://www.newscientist.com/ Not exact matches
Think sperm with multiple tails, no tails at all or in the case of one fruit fly, sperm that are nearly 6 cm long — roughly a thousand times longer than a human sperm cell.