I support the evolution theory because of nature selection. Evolution in general means change, and nature selection is what caused the preservation of changed species. There are so many examples that can prove nature selection is true. For example, from the fossil we can know that at the beginning there were two kinds of giraffe: long neck and short neck. When the environment and climate change or there were too many population, the amount of plant reduced and the plant witch grew lower would be the first to be exhausted. When there was only taller plant remained, the short neck giraffe would die because there was no food and only the giraffe with long neck would survive. Another example, The peppered moth in pre-industrial revolution England.
