As you view the following video ask yourself how each part of the embryo "knows" what body part to develop into and how and when to do it. Then ask yourself how such an astonishing process could've evolved solely through natural processes - blind, purposeless, and unguided.
No fair replying that nature just waved a magic wand, intoned "abracadabra," and poof, we see embryogenesis happening. That rejoinder only works if natural processes are the only possible explanation for the development of an embryo, but, of course, they're not.
Another much more adequate possibility is intelligent agency - an intentional design by an intelligent engineer.
Watch: