Mammoths shed their molars five times during their lifetime, and so they get a total of 6 molars in each half jaw, and a total of 24 molars altogether. The first one is the smallest in size, and the last one in the series is the argest.
Mammoths shed their molars horizontally, i.e. from the rear to the front. Experts can judge how old the mammoth was at the time of its death by examining the molars in the skull or lower jaw. The lifespan of a mammoth was around 60-75 years. occasional specimens may have reached 70 years of age.