DOMESTIC VARIETY
Ancestry: Rattus norvegicus 
Berkshire
Marking
Solid colored top with a completely white belly. Often has white feet and tail tip.
Variety Type
Marking
Key Traits
White belly
Solid top
White feet
🧬
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.