I’ve never seen a penguin smile – is this because they don’t have teeth or are the only ones I’ve seen generally unhappy?
Our experts answered
Penguins are birds, and no bird has teeth. They have barbs on the roof of their mouth and also on the tongue. The barbs are similar to teeth but are not used for chewing. (the Penguin from Batman does have teeth though!)
No because birds don’t have teeth. Obvious really.
Only those who brush regularly. As we all know, if you don’t brush your teeth they’ll fall out (especially if you eat penguin biscuits).