These forces are natural selection, direct action of the environment, and the effects of variation. Natural selection is the preservation of favorable variations and the rejection of harmful ones. It occurs to give an organism an advantage over the others, so that it will have the best chance of surviving and creating offspring. Humans only select external and visible characteristic in organisms to breed so they can get more money when they sell them or to make the animal have characteristics that they admire. In contrast of humans, the variations that occur in nature are for the survival of the animal and appearances do not determine what variations occur. An example of this is that a leaf-eating insect is the same color as its food which protects it from danger. Modifications in nature can only act for the good of the species and they will always gain an advantage from them. A new modification that contradicts a previous one will not wipe out a species. If they did, then the species would become extinct because the modification would kill them all. Another example of natural selection is that pigeon offspring may develop a short, powerful, and hard beak so that they can break the egg and hatch. Such variations can appear at any time of a species’ life and they often reappear in the offspring because the young modify in relation to …show more content…
The Bible says that God created the world and all the life in it over a period of six days which would mean that God’s time is different than human time. Creationists admit that it is possible that animals and plants modify to be better adapted to their environment, but the diversity of all living species have not come from a common ancestor. Some people also might argue that Darwin’s idea of natural selection is just a theory and that scientists cannot prove it because there are no direct, observable experiments that a scientist can recreate to test evolutionary events that occurred in the past. Creationists have also proposed the idea that all the changes that occur in plants and animals come from existing genetic information. The organism that people believe humans evolved from, possibly apes, could not have had the genetic information needed to become humans. This means that humans could not have evolved from the same ancestor as another organism. Darwin has created a very interesting theory, but it remains just a theory (Hyde;