DOMESTIC VARIETY
Ancestry: Rattus norvegicus 
Dwarf
Body Type
Significantly smaller than standard rats due to a genetic mutation (deficiency in growth hormone). Keeps 'puppy-like' features.
Variety Type
Body Type
Key Traits
Small size
Large eyes
Short tail
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Genetic Origin
All domestic rats are descended from the Brown Rat (Rattus norvegicus). Selective breeding has created these unique variations in coat, ears, and size.