Why do humans need to brush their teeth but no other animals need to?
In: 0
Sugar. Also comparatively low fiber in our diets (which does the job for other animals), but mostly pure sugar turns into an acidic byproduct in our mouth which can build up on our teeth if we don’t brush it off.
There’s also our lifespan; 20 years isn’t enough time for tooth decay to be a problem in most cases.
There’s also what animals do instead of brushing, such as chewing on plants or eating more fibrous foods.
And there’s also biological adaptions that humans don’t have. A shark constantly replaces their teeth. A rodent’s teeth continually grows instead of stopping. Birds don’t have conventional teeth.
In other cases, animals get bad teeth. If this happens in the wild, and the animal isn’t a social one and cared for by others, they die. So humans just don’t see the animals that would have needed brushing.
Latest Answers