Hope you are not tired of elephants. I found out more about the ears... those funny ridges that I thought were cartilage are actually veins. I guess those of you living in Africa already knew that. Elephants' ears have a profusion of veins. When they flap their ears, the blood running through the veins is air-cooled by several degrees, even more if the ears are wet. As the cooled blood flows back into the head and the rest of the body, it helps the huge beast stay cool in the hot African sun.