Color

Black

Reference information

Name	Black
Genotype	a/a
Mandatory picture?	No
Frequency (all time)	38.5 % (19,161 rats)
Frequency (in the last 2 years)	43.89 % (901 rats)
Average lifespan (all causes)	22.8 months (♀: 23.4 months – ♂: 22.3 months)

Description

Black.