Other primates have them too, but ours come in a lot later in life.
The pace of our lives are closely intertwined with so many things: hormonal changes, literal growing pains, and dental development. Most of us don’t remember teething, but plenty recall having our wisdom teeth erupt and, if you live in a place that regularly removes them, getting them yanked out of your jaw. It’s just one dental milestone and one of three molar milestones, but until recently we had no idea why wisdom teeth emerged so late in life.
The combination of these factors means that our jaws can’t accommodate that final set of molars until fairly late in life. Lots of people in the US get their wisdom teeth taken out, which might make you think that they’re some kind of evolutionary leftover—some artifact of a prehistoric life that’s no longer relevant. But the truth is that you don’t necessarily need to get them removed. In the UK, for instance, wisdom teeth are only removed if they become problematic, as the National Health ServiceEither way, the teeth are not so much a leftover as they are a sign of our evolutionary progress.
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