The reality of human evolution THE REALITY OF HUMAN EVOLUTION new | Page 56

7.2. Extinction and evolution Extinction is important element to consider in evolution, extinction is a state in which something no longer exists. Charles Darwin discussed on extinction in his theories of natural selection. Each living has to fight against environment for its existence; extinction is due different factors, such us genetic mutation, ecological changes, etc. human brain is developing for its resistance but also causing changes on the planet, where changes are affecting livings and humans themselves. We say that there is extinction of species when you cannot see its member in the world. In taking a study on fossils records, we discover of evolution situation and extinction of species, in our life, we cannot say that extinction is good, but it help us to why it existed to various species, then if something to do to protect others, we do and if nothing to do with our capacity, we let things happen. Extinction takes millions of years, no species can extinct in one year, it takes long time period as before extinction, they try to resist. 53