It's the Bergmann's Rule. Elephants evolved from earlier forms, like mammoths and mastodons.Having a round body minimized the ratio of surface area to volume. That way, they could retain body heat easily.
It's the Bergmann's Rule. Elephants evolved from earlier forms, like mammoths and mastodons.Having a round body minimized the ratio of surface area to volume. That way, they could retain body heat easily.
