Color

Unknown

Reference information

Name	Unknown
Genotype	?/?
Mandatory picture?	Yes
Frequency (all time)	9.06 % (4,496 rats)
Frequency (in the last 2 years)	5.79 % (116 rats)
Average lifespan (all causes)	18 months (♀: 18.7 months – ♂: 17.3 months)

Description

Undetermined color due to death at young age, albinism, marking, etc.