>Why would you expect such a thing unless you are fundamentally ignorant regarding the way that evolution works?<
It doesn't, so I am.
Did the "land whale" 'With legs' give birth to a sea whale without legs? If there were generations where the legs atrophyed or became fins, where are the fossils, illustrating that transition?
If you don't have a clue what evolution has to say about how species arise, how do you know it's false?