1. mouse
Hairless tail

2. Hairless tail with more scales then mice Larger
Rat
Hairless tail with more scales then mice
Larger

3. Hamster
Stump tail
Round stout body

4. Gerbil
Long tail with fur
Larger hind feet

5. Male – anus and genitals are far apart Female – anus and genitals are close together

6. Gender ID of Rat

7. Hamster

8. Gerbils