[QUOTE=TWDuke]
I don’t know. Do witches and mortals share common ancestors? Sure they physically resemble us, but how much does that count for when they’re obviously shapeshifters? They may have started as a race of squidheaded giants that took on their current default forms to make it easier to pass unnoticed. Besides, different species of animals can be very hard for non-expert observers to distinguish. We don’t really know what the internal structure of a Bewitchedverse witch is like. And while it’s obvious true they can interbreed with humans, do we know if the offspring are fertile? Even if they are, it doesn’t necessarily mean they would be classified as the same species, since hybridization does occur in nature (e.g., wolves and coyotes). The fact remains that they do not generally interbreed. I think there’s enough of a gray area here that Durwood’s legal team could make a plausible case, at least until Samantha twitched them into the stone age.
[/QUOTE]
First, I’m not convinced they try to go unnoticed all that often. Oh, Sam does, but Endora rarely seems to give a damn. And why should she? If she, Maurice, Arthur, and Samantha had ever decided, “Hey, ho, hey, ho, the USA has to got to go,” I seriously doubt the US Army would have been able to restrain them. Witch segregation from mortals seems more a matter of witchly disdain (or, if you like, witches being higher on Maslow’s hierarchy) than anything else.
Second, if I recall aright, Samantha’s second child, Adam, was born in a mortal hospital, and no one remarks on anything unusual. Sure, Sam or someone could have screwed with the doctors and nurses memories, but if they thought that would be necessary, why bother?
Third, if they were as dissimilar from mortals as you suggest, I seriously doubt they’d be attracted sexually to mortals, as Sam and several other witches & warlocks clearly are. Endora and Serena don’t treat Sam’s love for Darrin as anything weird, the way you would if I mentioned that Mrs. Rhymer is a genetically engineered chimp, or a hyperintelligent shade of the color blue; they just think he’s a dork. (And, of course, she’s right, but Sam has love goggles and doesn’t see it.) And neither Arthur, Clara, nor Esmerelda think it’s noteworthy either.
When hear hoofbeats, expect horses, not zebras. Witches are a subspecies of humanity.