Wednesday, October 10, 2012

Natural Selection.

Charles Darwin(right) is famous for his theories on natural selection. I personaly liked this story. I have always been intreeged in evolution and this story had it all when it came to facts. The main point of the story is that evolution is real. All animals have evolved over time, but the thing is that evolution takes a long time to work. If a bird has to migrate for a reason like climate change for instance, the bird will have to find new sources of food. If the bird cant find food, it dies. That means that the bird couldnt adapt quick enough so in a sence, it wasn't worthy of living. It is cold but true. One point Darwin made in the story is if a bird needed to crack a nut with his beak, then he would need a strong beak. If he didnt have a strong enough beak, he would die, but if the bird adapted quick enough and could crack the nut to get the food inside, it would live on and produce more offspring with its qulaities. So now the offspring can and will be able to crack the nuts and the species will live on. Natural selection can be bull sometimes also. If the animal was in the wrong place at the wrong time and dies, technolically it wasnt fit to survive, but the animal could have lived if it wasnt there. Anotehr example is that birds hatch from eggs, but not all eggs are the same thickness. So two identical birds could be in two different thickness shells and only one could make it out if they wernt strong enough. I believe in evolution and that all animals including man have evolved from primordial states.
Evolution of Man.

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