Let’s be honest. The human body is not a perfect machine, quite the opposite, a bit disastrous. Our organisms show essentially no intelligent design. Let’s see what our defects are (or if they are not so).
According to evolutionary biologist Matan Shelomi of the Max Planck Institute for Chemical Ecology (Germany), like most mammals, human beings sweat to balance our body temperature ; however, animals do not have as many sweat glands as we do. Thus, we are the least efficient thermoregulators in the world of mammals, equaled only by apes and horses, which have as many sweat glands, (especially in the armpits), as we do.
Why do we sweat so much? Sweating excessively is not very efficient but it has an evolutionary explanation. Humans sweat so much water for our closest evolutionary relatives, non-human primates.
More things. Our eyelids. Do the eyelids protect us from dust? Compared to the eyelids of other animals, ours leave a lot to be desired. Most animals have two pairs of eyelids, one that keeps light out and the other that allows the eye to be clean and dry so that it can see clearly. Pathologies such as dry eye syndrome and many other eye problems would not exist if we had a better eye design (we would not need glasses for swimming, for example).
Continuing with the eyes, the truth is that our peripheral vision is quite … mediocre . Pigeons, for example, although unable to see in 3D, they can see practically everything around them by having one eye on each side of their head. It is clear that many car accidents would not take place if our peripheral vision were better.
Like these, we would find many other examples of defects in our body but we already know that evolution does not seek perfection but adaptation . Our defects do not usually put us at risk of death and with the passage of time, in the past, in the present and in the future, technology will allow us to overcome the many defects of our body and extend our reach.
