Mouse sperm carrying a certain genetic variant known as the t haplotype move faster and straighter than others – and it turns out they are trying to sabotaging their rivals
Source:
https://www.newscientist.com/article/2266842-some-mouse-sperm-try-to-sabotage-rivals-in-race-to-fertilise-the-egg/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home