Feet. Some may find them pretty, or even alluring. Not me. Whilst hands are true marvels of what evolution can achieve, our feet are very far removed from being such. Their ad-hoc nature is all too apparent.
Humans are plantigrade, as are many tree-dwelling creatures and only a few land-dwellers (like bears). That means our heels touch the ground and not only the tips of the fingers. Most land dwellers are digitigrade, that is they walk on their fingers or their tips. That has the advantage of allowing for greater speed – and indeed even humans resort to moving on their toes when speed is the priority.
Professor Kos emphasised that although “plantigrade” means “touching the ground with the whole sole” this is not in fact true. Our feet do not touch the ground with the whole sole , not as such. There are only three points that bear weight – the heel, the big joint at the base of the big toe and the joint at the base of the fourth toe. That is why we are able to stand on one foot – it still provides three points of contact for stability.
And just as it is with the hand, most of the muscles that actually move the feet are not in the feet, but on the calf.