Are humans designed to be symmetrical?
We all have two of a lot of body parts. But it seems like while we things are generally symmetrical, there are lots of flaws and imperfections.
- Eyes. I have known several people with a left eye of one color and a right eye of another color
- Arms (and to a lesser extent legs) where one arm is ¾ to an inch shorter than the other
- Feet: most people have feet of slightly different sizes; no more than a ¼ inch (or one size) different, but they’re not the same
- Breasts. Possibly most visible. Different sizes, different placement on the chest, one points more out, the other more straight ahead.
- Ears. Some people have one a little higher or lower, or front or back, than the other
There are probably more examples, but these are what come to mind.
And I am not even talking about internal organs, such as lungs and kidneys.
Why would evolution, otherwise so effective, have resulted in these odd asymmetricities?
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