- Rat Anatomy
- Rat Coat Biology
- Where do rat coat colors come from?
- Coat color, temperament, and domestication. Also see expanded article: coat color and temperament in rats and deermice.
- Why do some rats have white blazes and megacolon?
- Australian blue rats: a hypothesis
- Where do different rat coat types come from? Also see article on the hairless mutation in mice and humans.
- How do albino rats differ from pigmented rats?
- Biological statistics of the Norway rat
- How soon can female rats conceive after giving birth?
- Rat rigor mortis