Human fingers and toes do not grow outward; instead, they form from within a larger foundational bud, as intervening cells recede to reveal the digits beneath. This is among many processes captured ...
Bored Panda on MSN
Your internal organs itch: 55 facts about the human body that might keep you up at night
Even if you think you learned everything that you needed to know way back in biology class, everyone has knowledge gaps. And ...
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