Ok time for the more, from what I've seen on this board, all of the arguments of evolution fall into the five major misconceptions about evolution. These misconceptions are:
- Evolution has never been observed.
- Evolution violates the 2nd law of thermodynamics.
- There are no transitional fossils.
- The theory of evolution says that life originated, and evolution proceeds, by random chance.
- Evolution is only a theory; it hasn't been proved
I'll address 1, 3, and 5... and if you want to argue 2, you're gonna get owned by me... you've been warned.
Biologists define evolution as a change in the gene pool of a population over time. An example would be the way that insects seem to become less vulnerable to pesticides over time. Most of you creationists aren't going to dispute this. But you can't stop at this level, you have to continue further. You have to appreciate that this rate of evolution is all that is required to produce the diversity of all living things from a common ancestor.
Evolution has actually been observed, in the field, and in the lab, go to your library and look at this source: (Weinberg, J.R., V.R. Starczak, and D. Jorg, 1992, 'Evidence for rapid speciation following a founder event in the laboratory.' Evolution 46: 1214-1220).
Even if this wasn't true, who said you ever had to physically observe evolution unfold for it to be true? One must analyze fossil record, comparative anatomy, genetic sequences, geographical distribution of species, etc., and these predictions have been verified many times over. Evolution is not so complex that a cat is going to turn into a dog... in fact, if a cat turned into a dog, this would be something to disprove evolution.
Definition of a transitional fossil: A transitional fossil is one that looks like it's from an organism intermediate between two lineages, meaning it has some characteristics of lineage A, some characteristics of lineage B, and probably some characteristics part way between the two.
There's nothing in the theory of evolution which says an intermediate form (or any organism, for that matter) can have only one line of descendents, or that the intermediate form itself has to go extinct when a line of descendents evolves