This has nothing to do with evolution. You're challenging embryology, and probably a few other parts of biology.
Is this supposed to be the case for anything other than people?
Yes it does. It hs everything to do with the theory of evolution. The TOE says all the design data is stored physically inside each organism and is passed on down through each generation physically in genetic material. When you get in a debate with me, you'd better know what you're talking about.