In most mammalian species, females are no smaller than males.

Male mammals have lengthy been stated to be bigger than females – a phenomenon often known as sexual dimorphism – but it surely seems that this will not be the norm. Evaluation of the physique mass of greater than 400 mammalian species revealed that solely about 44 p.c had bigger males.

“There’s a giant taxonomic bias,” he says, about which mammalian species have been studied for physique measurement dimorphism. Kaia Tombak at Hunter Faculty in New York. it occurred…