As far as I know, the only whitesided rats that are pure are blacks and Everglades. When I got my whiteside Glades, I was told that they are most definitely Glades (and had been bred into both Glades & yellows to find out), however, for some reason when they're whitesided, they lose the orange. Because of this, a lot of people think they're yellows, and have bred them into lines of yellow rats. Whether it's true or not, I find it somewhat believable.
Also, remember that there's a belief out there that says Everglades rats aren't a viable subspecies, but are a locality of yellows. And any way you look at it, MANY of the Everglades on the market today aren't pure glades rats, but have a ton of yellow in them. It's difficult to tell when you can find yellow rats a mile away from where you're finding Everglades rats, and they look almost exactly the same. I know I see glades on the market today that I look at and see that there HAS to be some yellow rat influence in them.

hope that helped!
Ronnie Nocera

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