LifeMarmosets swap brain cells with their siblings Most marmosets have non-identical twins or triplets, which exchange blood cells while in the uterus - and now it seems they also swap certain brain cells News
LifeMost mammals go through the menopause - if they live long enough The majority of female mammals stop producing eggs long before the end of their potential lifespans, but in the wild few reach this point, other than humans and some whales News