Strength: Philosophical questions are the best! what is the purpose of an earlobe? An appendix? Armpit hair? Sadly, I have to stick to 400 characters. In the case of the fibia - it is our lateral calf-bone, and gives us strength to stand and jump, as well as a redundant bone in a lower (more vulnerable) part of our leg. In the old days, living or dying was determined by being able to run away - even injured.
Answered 5/6/2015
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