Why aren’t our fingers the same size? Like how come most people are born with the ring finger splitting the difference between the index and middle? I know it’s like natural selection and stuff but why did it benefit us for our fingers to be how they are?!
In: Biology
One theory is that different finger length and size enables us to make a fist.
Hold your hand in front of you, palm facing you. Then bend your fingers over, towards you. Now the ends are aligned. When you make a fist, your fingers tuck cleanly into the palm. If our fingers were the same length when outstretched, they wouldn’t fit so precisely into the palm and some minor (mid-finger) knuckles would stick out, raising the likeliness of injury when punching.
Of course, this is just a theory, but it sounds much more plausible to me than the grasping theory.
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