Why are there different bodytypes for example (musclar or tall and thinner) and not an ideal bodytype, that everyone has?
In: Biology
DNA has little chunks called genes that give the body specific instructions on how to grow. There are 700 genes contributing to height alone. These genes get mixed up during reproduction, and with 700 genes there are going to be a lot of possibilities for height. Think about how unique eye color is–there are only 16 different genes that control for eye color. And then consider what else can contribute to body type–being raised with more or less access to food, or current lifestyle. When you see how many things can work together to make just one, unique body type, you see that it would be impossible for us all to be exactly the same.
If you think about it, we all kind of do have an “ideal bodytype”, that in the grand scheme of things is remarkable. There are one trillion species on earth, from bacteria, to trees, to elephants. Grab me a few million organisms at random from the world and tell me how many stand on two feet, with ten fingers and ten toes, and with two eyes facing forward on the front of our head, give or take for some anomalies (hint: the percentage is so small it’s hardly worth mentioning). The human body type is incredibly specific, in fact, it sets us apart from 1 trillion other species.
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