First of all evolution happens in a population, not in individuals. So in the entire population, the probability of a favorable mutation arising is a lot more than in one individual. Furthermore, what might be favorable in one environment might be detrimental in another. If you plop a fennec fox down in the arctic, it could be seen as having several harmful mutations. If you plop an arctic fox down in the deserts of Saudi Arabia, the arctic fox would be seen as having several harmful mutations. In the right environment, however, those very same traits are beneficial. Populations respond to changes in the environment as some survive better than others. A giraffe might have had a mutation that made its neck just a few inches longer than others around it. It wouldn't be a huge thing, but it might help it reach more leaves. Over time the neck got very long and other adaptations went along with it because those who had them survived better than those who didn't.
Very wishful thinking to say the least. 98.5% of mutations are either harmful (like Tay-Sach's, Huntington's, BRCA 1 and 2, or thanatophoric dysplasia) or provide no benefit whatsoever and are meaningless for survival. Most of what evolutionists called "mutations" are actually natural selection--a culling of the gene pool so that certain traits stand out, similar to when breeds of dog, cat, or horse are made. The organisms subject to this, such as the different species of island finches that have "evolved" different beaks to fit the local nut-bearing trees the best, have actually
lost genetic diversity, not gained it.
Even those few mutations that do appear useful at first often are a double-edged sword. A hemocytic mutation that protects against malaria is pretty common in Africa. Too bad it also codes for deadly sickle-cell anemia. It is therefore unlikely that the anti-malarial mutation seen in Africa is about to take the whole world by storm and be the catalyst in a new breed of super-healthy humans.
There was a great article on the evolution of the eye that I'll get for you if I can find it. It basically starts with a light sensitive nerve though.
Yes, they are called ocelli. Organisms such as caterpillars and spiders have these very sensitive, simple "eyes", which can tell light from dark, and that is about it. They don't need anything more advanced than that, but why haven't
their eyes progressed throughout hundreds of millions of years? Why are there no mutations in caterpillars or spiders producing even simple compound eyes (like flies have)?
That millions of useful mutations happened all by themselves over short spans of time. That just stretches credulity too thin. If something looks designed, it is because it was designed.
You have a very good point, Masha. Modern evolutionary theory believes in punctuated equilibrium (that there has not been a steady process of change over billions of years, but rather broad phases of relative stasis, and sudden periods of great mutation in a brief amount of time). This is ridiculous and biologically incompatible with sustained life. We have a term for when millions of mutations happen in organisms very suddenly. Most people understand it very well. It's called cancer.