To what extent are humans who live in a technological societ

To what extent are humans who live in a technological society exempt from natural selection? Justify your answer.

Solution

Humans in technology environment are not very free from natural selection.We have at least temporarily changed some of the rules. Many that would have died of diseases or illness can be cured, so much of the selection pressure changes.very first human ancestors had no natural defenses, they would die from what is considered today an insignificant disease.  It was throughout millions of years, that the human body started to build an immunization to certain diseases and only the stronger humans were the ones to survive and carry on that trait. Likewise, having no fur on their bodies to survive in the cold weather, they learned how to use other animals’ skins and how to build some weapons, in order to chase wild animals. There is a potential that we may change the rules completely if we decide to actively manage the genes we pass to offspring. We haven\'t really done much of that yet besides some sperm banks but the technology is advancing rapidly so there may be no limit on what could be done.

Nowadays, humans have made incredible discoveries; we have created a wonderful world of technology, which leads us to make some enormous progress in the field of medicine; especially in how to treat diseases which were, at some time, considered incurable. We have made such progress in technology, that we are keeping too many people alive, including some that might not fit the environment in which they live.  In addition, we are allowing some infertile people to reproduce through in-vitro fertilization, when apparently they were not capable naturally.  We are also letting babies survive by saving their lives at their birth even though they might not be perfectly healthy or other traits which could be detrimental for the human species.  But through science and the new technology, we have let these babies live and we have given them the opportunity to grow up and reproduce, transmitting their traits to other generations.  Due to these facts, it is very probable that we are acting against natural selection in human beings.