Question

Prove that : Human have only 10 fingers ​

Answer 1

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It's the kind of question that usually pops up in kindergarten class, or at 2 a.m. in college dorm rooms after popular tetrahydrocannabinol derivatives have been metabolized:

Why do we have 10 fingers and 10 toes, anyway?

As Lissette Padilla explains in this DNews dispatch, the truth is that we don't really know. But scientists have some pretty good guesses.

When in doubt, consult a theoretical neurobiologist, we always say. In 2001, author and researcher Mark Changizi proposed a mathematical hypothesis called the Limb Law. His equation attempts to suss out the ideal number of limbs an animal requires, depending on its environment and body size.

Answer 2

Step-by-step explanation:

As Lissette Padilla explains in this DNews dispatch, the truth is that we don't really know. But scientists have some pretty good guesses.

When in doubt, consult a theoretical neurobiologist, we always say. In 2001, author and researcher Mark Changizi proposed a mathematical hypothesis called the Limb Law. His equation attempts to suss out the ideal number of limbs an animal requires, depending on its environment and body size.

Applying the Limb Law to 190 animal species from seven different phyla, Changizi found that his math held up -- and the researcher suspects the same equation could explain why we have 10 fingers. In this case, our hands are the "animal" and our fingers are the "limbs." Crunch the number and you get 4.71 fingers per hand. Mother Nature, it appears, rounds up.