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. My point is, that since we have made such progress in technology, I am scared 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 bedetrimental 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, ever since humans became people who think and care for one another and we have made it immoral to kill another individual or to let him die.…