I don't have time to post volumes of information and arguments and I don't have to because the posters on http://talkorigins
.org have proven conclusively that species evolve from other species .Why are there no human fossils that are 100 million years old ? Why are there innumerable examples of transitional species whose fossils date between the dates of the ancestors and descendants? Are you suggesting that no species ever splits into two that can no longer reproduce together? Once two species are formed from one they become more and more divergent over time due to mutation and inheritance . The fossil record shtransitional species.