Natural Selection is the random decision of choosing what traits are being kept and reproduced and what is being eliminated. For example, some birds choose whether they want to eat green beetles or yellow beetles. Based on the bird's decision depends if the beetles survive or have to move to a different environment. If the bird only likes to eat yellow beetles soon there will no longer be yellow beetles, there will only be green beetles left. This is the cause of natural selection because the bird randomly picks what food they wants to eat. Natural selection affects evolution because if the bird only eats yellow beetles the there will only be green beetles that evolve over time. We are also an example of Natural Selection because long time
