evolution. take the flying squirrel for instance, in between being a normal squirrel and one with wings there would have to have been a long period when the squirrel just had useless flaps hanging of it that served no purpose. why?
maybe the subconscious is another factor in Darwin’s theory
elephants travel in a to different waterholes to find water in times of drought. the mother can pass these memory’s down to her offspring.
what about fish that use lures to hunt. at some Point that attractive lure would have been a useless nob on it head. why would it go through such a long period of evolution growing something unless it was trying to achieve its desired form.