Color
American blue
Reference information
| Name | American blue |
|---|---|
| Genotype | a/a d/d |
| Mandatory picture? | No |
| Frequency (all time) | 7.27 % (3,565 rats) |
| Frequency (in the last 2 years) | 3.88 % (79 rats) |
| Average lifespan (all causes) | 19.5 months (♀: 19.3 months – ♂: 19.7 months) |
Description
Black + American blue.
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