Asked by: Louie Bridgeman-Rivett, Brighton and Hove
Emphatically, yes: baby teeth are common in nearly all other mammals. The trait is almost certain to have been inherited from a single wobbly-toothed mammal ancestor that lived in the age of dinosaurs.
The adaptation means that, as mammal jaws grow into adulthood, the adult skull is not left with tiny teeth incapable of biting and chewing. In most mammals, baby teeth are often swallowed and come out in their droppings undigested.