Feb. 4 (UPI) -- It turns out that the sperm that win the race to the egg use variants of genetic factors, called distorters, to poison their competitors, according to new research.
https://www.upi.com/Science_News/2021/02/04/Some-sperm-use-poison-to-outrace-their-competitors/8271612455388/
https://www.upi.com/Science_News/2021/02/04/Some-sperm-use-poison-to-outrace-their-competitors/8271612455388/