A small baby elephant crosses the road, chewing on a stick. Maybe his teeth are coming through? Actually, elephants are born with four small molars, which they will lose when they are about two years old. Unlike humans, who have milk teeth first and then change to their final set of teeth, elephants change their teeth troughout live. A long-living elephant goes through six sets of molars that replace the teeth that become worn out by chewing grasses and trees. The loss of their final set of teeth is a major cause of death among aged elephants.