Why do these cats look different?

[Ivy Norsk]

Shannon, I think you misunderstood my intent.
I'm not wondering why you asked your question nor judging you for asking it. People have asked the same question that you just did for years in this same section of the forum. Nor does it have anything to do with being smart.
I was more surprised at Kitten's response (though I think she understood the answer with her reference to "combination of traits") and Tad's response (who I could have sworn had previously answered the question when it was asked before).

Edited to add:
I would like to clarify that I'm not trying to wave a stick around and say "Fix this NOW." I consider KittyCats to be under duress right now: Callie is in pain and there was a scramble to push out the St. Paddy's day cats, and things are likely a bit stressed. I myself am very excited about the new head and think it's a wonderful addition and my Scottish Blue and white threw his fur this morning and the little kitten is showing Soul Whisper eyes. I am a happy camper. I just didn't understand why the ear glitch - and that's all it is is a glitch - was being treated as a mystery. My comment is more meant to be taken like a post-it note. I have to-do lists on post it notes on my desk and computer for the things to do today, and this week, and the stuff I should have done last week, and sometimes I make new lists to transfer the old to the new to dos, and I think the ear glitch is kind of like that.