I hereby resurrect this thread, so I'm not a liar.
O.K., the evidence. The first piece. You will remember that according to ToE, new species branch out from existing species. You have one species, and another one branches out from it just like the branch of a tree. Now eventually the first one is going to go extinct, but nevertheless if you had total knowledge, and all the species that have every lived (hundreds of millions of them) they would all be related to each other just like a tree, with a single trunk, a few large limbs, each limb having branches growing out of it, and so on, down to the newest tiny little twig at the end. Therefore, ToE says, all of the organisms on earth should show just this pattern of relationship, and no other. You should see a branching pattern of similarity, and this should be the only logical and objective way to organize them and understand their relationships.
And in fact this turns out to be true. Every organism ever discovered, current or extinct, is related to all the others, and can objectively, by multiple traits, be arranged into this "tree of life." This isn't really a prediction of ToE, because Linneaus (a creationist) observed that this was the best way to organize living things before ToE was figured out. However, the grand ToE, the one that says that this is how all species originated, does predict that this will be the case for each and every organism, period. So in that sense it contains millions of predictions that have been borne out.
Before Linneus, the common view was that life was organized in one big chain or ladder, with the "highest" at the top (people) and the "lowest" at the bottom (slime molds?). This turned out to be wrong, as Linneus and ToE discovered. You might also arrange things in a chart form, or just willy nilly, with no particular pattern of relationships. According to ToE, the only objective, coherent way life could possibly be organized is in this tree shape, which Biologists call a "nested hierarchy."
And we see that in fact this is reality on the ground. And in the air. And in the sea.
There is a lot more to say about this important fact, which IMO in itself is powerful evidence for ToE, once you understand its implication, so please post if you want to discuss or argue.