Yes they do! - Species change to other species. It’s called evolution, and it takes time. Small changes here and there, over a (very) long period.
When do you consider a species changed to another species? When they can’t breed anymore maybe?
We have no proven example of species to species change. We have no proof of evolution. Evolution doesn't prove itself when we don't have any factual proof that it exists.
House cats can breed with leopards. Now there might be a complex scientific classification of these, and they are in the same family, but would you not say they are two different species? Sure might never happen in the wild, leopard would just think, hey lunch, but they can breed. How about Tigers and Lions? Do you think of a house cat and a lion as the same thing, species-wise?
That's not species to species change. Nor is it development of a new species.
How about humans and apes? Can they breed? Don’t know if they can, don’t know of anybody have tried, but I’m sure some have. I’ll take a wild guess that some apes can breed with humans, maybe not all but some. Don’t want to see the result though!
Chromosome number differences make this impossible in nature, although science might find a way to force it to work temporarily... sometime in the future when we learn a lot more. If stuff like this was easy, science would already have figure out how to allow people to live in tip-top health for 500 years or longer. Nature is built in certain ways that it can change according to its design, but that we can't change except where it has been designed to allow us to make changes.
Why can some species not breed and some – that I consider different species – still breed? Why can’t I breed a giraffe and an elephant or mouse and mosquito? Well the solution is very simple; some species are simply too far removed from their common ancestor on the evolutionary tree, while some are much closer. Too much evolution (change) has happend.
Except that this is not known to be evolution. No proof that it is evolution and not some other process. Remember, we are talking about evolution theory evolution (ETE) but not simple change.
If it was all programming by design, why can there even be any cross-breeding at all? Hmm… let me wonder about that for a moment…..Programmed by design to be able to cross-breed, create new species that was not in version 1 of the whitepaper. Hmmm… I think I will choose to call that evolution.
Consider the complexity of nature. Why can't a bunch of kinds of crossbreeding be built in, while other kinds of crossbreeding be not designed? If you are asking why a designer would do it one way and not the other, the answer might come to you when you have finally understood all the complexities of nature.
Can it happen in a lab or by a little human help, it most certainly has happened in the wild, in the span of a billion years, and a billion-billion-billion “tests”. Must mean by shire statistic that none v1 whitepaper species are running around right now on the planet. Evolution 100% confirmed!
Lab stuff doesn't work except temporarily. Why? Because when you take away from perfection by dumbing things down in the lab, you build failure in. In addition, we have no proof of billions of years, or proof that evolution happened even if there is billions-of-years. Just saying it, or just calling creatures that have similarities and differences at the same time, examples of evolution, is not proof.