PLAYER57832 wrote: because we have the proof of life on Earth around us, and we have the proof that species change from other species,
Do we? Now I might be nit picking here. Let's look at the general definition of species, "as a group of organisms capable of interbreeding and producing fertile offspring." Now the question of sub-species changing into a sub-species might be somewhat established in proof, but finding the exact transition where a Subspecies, say A75 is so varied from the opriginal subspecies A1 or another variation of the subspecies, say A98 that they are no longer "capable of interbreeding and producing fertile offspring."
So, for example, do we have an actual event where the donkey (Equus africanus) or anyone else in the donkey's species, clearly became separate from that of the horse (Equus ferus)? I have a feeling that this is not as easy as you might think. While the origin of sub-species is the topic of evolution, the actual origin of species is extreemely long term isolationism so that genetic drift among the isolated populations reaches the critical non matching point. Indeed such creatures might not actually be introduced to each other until hundreds of generations after this point.
We actually have evidence of the opposite, how non isolation leads to non species creation. Dogs are a good example; hundreds of breeds but they are all the same species as their common ancestor the Grey Wolf (Canis lupus) Actual species that differ include Dire Wolf (Canis dirus) (extinct), Ethiopian Wolf (Canis simensis), Coyote (Canis latrans), Golden Jackal (Canis aureus), Side-striped Jackal (Canis adustus), and the Black-backed Jackal (Canis mesomelas). In these cases we see the effects of long term isolation creating the species, but the exact moment that they became their own species is probably blurry at best.
(I'll add that "long term isolation" doesn't mean physical isolation. If changes in habitat or behavior are so significant that the sub scpecies are no longer sexually interested in each other - "hey you have blue feet ... I only fall for red feet" then that is an effective isolation mechanism.)