Some mouse sperm try to sabotage rivals in race to fertilise the egg

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…

Why Scientists Are Very Worried About the Variant From Brazil

An anonymous reader quotes a report from NPR: New coronavirus variants seem to be cropping up everywhere. There’s one from the U.K., which is more contagious and already circulating in the United States. There’s one from South Africa, which is forcing Moderna and Pfizer to reformulate their COVID-19 vaccines and create “booster” shots, just to make sure the vaccines maintain their…