Dominant trait: Merle only expresses on mink-based rats such as pearl. Merle in rats is very similar to merle in dogs, spreading a pattern of colored spots and splotches over the rat’s body to create a unique and handsome picture. It is most distinct on young rats, fading as they get older.

Our Merle Rats: Right now our Merle rats only come in our Dwarf size rats

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