Are there any other animals, besides humans, who have baby teeth then adult teeth?
If you have a puppy or a kitten, you can watch it lose its deciduous teeth and get new, adult teeth as it grows up. They’re called “diphyodonts”, which means they get two sets of teeth in their lives (deciduous and permanent). Cows and horses also lose baby teeth. The only mammal I know of that comes into the world with its permanent teeth are pigs. Rabbits lose their baby teeth almost immediately. I’m sure it happens to other, obscurer mammals as well. Sharks don’t just have baby teeth, but grow new sets of teeth through their lifetimes.
