Elephant

• 12 premolars, 3 in each side of each jaw.
• 12 molars, 3 in each side of each jaw.
Unlike most mammals, which grow baby teeth and then replace them with a permanent set of adult teeth, elephants have cycles of tooth rotation throughout their entire lives. The tusks have milk precursors, which fall out quickly and the adult tusks are in place by one year of age, but the chewing teeth are replaced five or, very rarely, six times in an elephant's lifetime.