ET Online
Jul 22, 2025
It once helped our ancestors digest tough plant fibres. Today, it’s mostly useless—and often removed when inflamed.
Image Source: iStock
These extra molars helped prehistoric humans chew raw plants. Now, they crowd modern jaws and often need surgical removal.
Image Source: iStock
A leftover from when humans had tails. It now serves no real function—except occasional pain after a fall.
Image Source: iStock
Some people can wiggle their ears—but these muscles no longer help us locate sound like they did in animals.
Image Source: iStock
Once used for warmth and sensing insects. Now, we rely on clothes—and most body hair serves no critical function.
Image Source: iStock
Formed before a baby’s sex is determined in the womb. Males don’t need them, but they still show up.
Image Source: iStock
Absent in 10–15% of people. It once helped with tree climbing and strong grip. Surgeons now use it in tendon grafts.
Image Source: iStock
That small pink bump in your eye’s corner is a remnant of a third eyelid found in birds and reptiles.
Image Source: iStock
They help trap germs—but not essential. Many get them removed without any major impact on the immune system.
Image Source: iStock
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