Humans have been puzzled by things like the depths of the ocean and outer space. But one equally mysterious object has been standing right in front of you when you look in the mirror. It’s a human body.
And one TikTok creator named Knowledgesaurus has been stripping away the mystery surrounding it in a series of “How Rare Is Your Body?” videos. From explaining what percentage of people have features like cracked tongue, angled palm crease, or an extra rib, to counting how many people have the ability to write with both their right and left hands, or can make a clover out of their tongue.
The informative and fun videos gained Knowledgesaurus immediate popularity with millions of views and 1.3M followers, so let’s see some of the most interesting body facts that will pump your biology knowledge muscle so you can show it off in the next trivia session.
#21

35% of people can gleek. Only 1% of people can do it on command. Gleeking is when you're spitting saliva from under your tongue and it squirts out.
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143points
#22

Less than 1% of people are born with a white patch of hair. It is called poliosis, which is caused by the lack of pigment called melanin in the hair follicles.
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143points
#23

Only 5% of people have arched fingerprints. Most people have looped and whorled fingerprints.
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142points
#24

Less than 1% of people have their heart on the right side of their body. Surprisingly, this doesn't normally come with any negative consequences.
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142points
#25

Only 25% of people have dimples. You can have either two, or just one. Dimples are also hereditary, so if either of your parents has a dimple, it's more likely you'll have one as well.
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136points
#26

20% of people have a gap between their two front teeth. What normally causes this is a discrepancy between the jaw size and the teeth. A lot of celebrities have this and don't correct it because they think it makes them unique.
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133points
#27

Only 2% of people naturally have blonde hair. If you narrow it down just to white people in the United States, that percentage goes up to 5%.
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132points
#28

Only 10% of people have birthmarks. They're usually oval in shape and come in a coffee type color.
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130points
#29

70% of people bend their head to the right when kissing. Your brain is the cause for this. The left side of our face shows more emotion so we want to give our partner the more emotive side and we tilt our head to the right.
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130points
#30

1% of people have a double row of eyelashes. While this might look like something a lot of you are jealous of, it actually can cause a lot of problems.
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129points
#31

Less than 1% of people have pointy or elf-like ears. It's an abnormality called Stahl's ear, it's usually corrected early in life.
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129points
#32

Only 35% of people have 20/20 vision. 2/3 people cannot see perfectly.
124points
#33

25% of people have perfect teeth and never need braces or any orthodontics. 45% of children need braces, but 75% need orthodontic care.
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120points
#34

14% of people don't have this muscle - Palmaris Longus. This muscle was developed when our ancestors were big tree climbers. If you want to see if you still have it, pull back your palm on a flat surface, touch your pinky and thumb together and slightly lift them and you should see that ligament pop out.
118points
#35

6% of people can vibrate and rapidly shake their eyeballs back and forth.
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116points
#36

10% of people can touch their nose with their tongues. In medicine, this is called the Gorlin sign.
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110points
#37

20% of people are double jointed. This is thought to be genetic and due to a variation in collagen in your connective tissues.
109points
#38

4% of people are colorblind. Color blindness occurs in 8% of men and 0.5% of women.
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109points
#39

Less than 1% of people can give themselves goosebumps on command. The majority of people get them when they're cold or listening to music, but some can give themselves goosebumps whenever they want to.
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107points



