Elephant tusks are one of the most recognizable features in the animal kingdom. They’re also one of the most misunderstood. Many people assume tusks are horns, that they grow back if broken, or that all elephants have them. None of these are quite right.
Elephant tusks are elongated upper incisor teeth, not horns. They grow continuously throughout an elephant’s life at roughly 17 cm (7 inches) per year. If a tusk breaks, it does not grow back – unlike rhino horns, which do regenerate. Not all elephants have tusks: most African elephants (male and female) do, while in Asian elephants only some males grow visible tusks.
This guide covers what tusks are made of, whether they grow back, how big they can get, why elephants need them, what’s happening with tuskless elephant populations, and what elephant tusks are worth – the question that sits behind the entire ivory poaching crisis.