Many believe that tortishell rats don’t exist or are extinct. However a few breeders have bred a consistant line, that produces what appears to be torti patterned rats. As of May 2019, I am working on my 5th generation. Each generation is getting better, with patterns visible at the beginning of fur development.
Shadows which many have found, are linked to torti rats. A shadow rat is best seen in dark colors, the top of the rat will be dark and the belly a silvery color. Many of my shadows now, have brown or salmon pink bellies, depending on the rats base color. There are other colors possibly connected to this gene, including; mock agouti, midnight blue, midnight mink, midnight russian blue, leaden/graphite, steel, charcoal and others.
Below are some pictures of rats born at GBR. I have also included some informative links from the internet. This page will be updated often.
This article is written by a well known and respected rat fancier. Its very possibly the best article available on, shadows, torti’s and the midnight colors.
This is a good one on charcoals.
A fantastic archived site of a past breeder of shadow and torti’s.
Another great link, with more external links. Put together by a special friend of mine.