African elephant calves develop deciduous tusks called tushes that grow up to five centimeters (two inches) in length and fall out when the elephant is between 6 to 12 months of age. Tushes consist of crown, root and pulp. They provide the foundation and orientation of permanent tusks, which are extensions of an elephant’s only incisor. Permanent tusks grow approximately 17 centimeters (6.7 inches) per year and grow throughout an elephant’s lifetime. This young elephant is about three or four years old. Female tusks grow at a slower rate, so her permanent tusks are just beginning to show.
I’ve never thought of baby teeth as deciduous, like the shed leaves on trees. Who knew that elephants have baby teeth?