LifeFemales are not smaller than males in most mammal species The idea that male mammals are larger than females has persisted for more than a century, but an analysis of body mass and length in 400 mammal species shows it isn’t the norm News
LifeSloths have double the grip strength of humans and other primates Dangling from a tree with just a single foot, sloths can exert more gripping force relative to their weight than primates – and they are consistently, but mysteriously, stronger on their left side News