Born Without Wisdom Teeth
Percentage Of People Who Have It: Around 20%
Most people end up having their wisdom teeth removed before they reach adulthood. Of course, some of these people did not need to remove them. Others were told to do so for the health of their teeth. When they come in, wisdom teeth will grow and push on the rest of your teeth. This can cause pain and even make your teeth crooked at times. Yet people went thousands of years without this problem, what happened? Funny enough, some people are born without them.
Nearly 100% of all indigenous Mexicans do not have wisdom teeth from birth. Yet nearly all Tasmanian Aborigines do. This presents a situation in which evolution dictated need, causing people in different parts of the world to need or not need wisdom teeth. Due to this, roughly 20% of the planet is now born without wisdom teeth. This used to be rarer than it is today but the percentage is climbing, meaning more will be born without them as we go into the future.