matilda was born 5/31/04. she wears a yellow blaze on her back like a proud trooper. she is a retired breeder and had approximately 1-2 litters of rats before her retirement. she is losing her fur (and may be bald by the time you meet her) but still has a beautiful round face. and she is the alpha girl - she is always the first to check out everything around her.

she is singularly the instigator of all good things. she has no time for hesitation, and investigates all new things. she is quite the talker and a born socialite. she is always found as part of the rat huddle.

all three barbie sisters are albino lab rats, who have been injected with human DNA. they are transgenic animals - a cross-breed between animal and human. they all have white fur and red eyes.