Most animals die from disease, predation, or injury. Elephants are different. The leading cause of death for old elephants in the wild is something far quieter and more inevitable: their teeth wear out. When the last of their six sets of molars finally grinds down to nothing, elephants can no longer chew the tough grasses and bark that sustain them. They drift toward swamps and rivers in search of softer food, growing steadily weaker, until they die. Understanding elephant teeth means understanding elephant life — and elephant death. Explore elephant anatomy and you quickly find that no single biological system shapes an elephant’s fate more completely than its dental architecture.
The short answer: Elephants have six sets of cheek teeth (molars) over a lifetime, replaced not vertically like human teeth but horizontally — each new molar pushes forward from the back of the jaw like a slow-moving conveyor belt. Tusks are separate: they are modified upper incisor teeth that grow continuously. When the sixth and final molar wears out, typically around age 60–70, the elephant can no longer sustain itself and dies. Elephant lifespan is, in the most literal sense, determined by dental wear.
