I recently started breeding rats for food purposes only. I am now more interested on tracking the genetics of different breeds of rats. I believe I have mostly hooded rats but am not sure of this new curly hair version that popped up in my last clutch. I am also interested in what makes a "blue" rat? Is it a very light grey version? I was hoping there was a site such as world of ball pythons but for rats? Any info would be appreciated.