a recent thread made me think about this. here is a link and a quote from a thread that ran 2 years ago and was started by cantleave. Also please don't tell me or insinuate that I am stoopid
Misconception : “Evolution means that life changed ‘by chance.’”
Chance is certainly a factor in evolution, but there are also non-random evolutionary mechanisms. Random mutation is the ultimate source of genetic variation, however natural selection, the process by which some variants survive and others do not, is not random.
For example, some aquatic animals are more likely to survive and reproduce if they can move quickly through water. Speed helps them to capture prey and escape danger. Animals such as sharks, tuna, dolphins and ichthyosaurs have evolved streamlined body shapes that allow them to swim fast. As they evolved, individuals with more streamlined bodies were more likely to survive and reproduce. Individuals that survive and reproduce better in their environment will have more offspring (displaying the same traits) in the next generation. That’s non-random selection. To say that evolution happens “by chance” ignores half of the picture.