Color

Black

Reference information

Name	Black
Genotype	a/a
Mandatory picture?	No
Frequency (all time)	38.57 % (19,678 rats)
Frequency (in the last 2 years)	39.43 % (636 rats)
Average lifespan (all causes)	22.9 months (♀: 23.4 months – ♂: 22.4 months)

Description

Black.