The reasons why female hamsters bite male hamsters are as follows:

1. It may be because female hamsters lack nutrition after pregnancy and will eat male hamsters to supplement nutrition. Breeders should ensure that female hamsters have adequate nutrition.

2. It may be because hamsters have a strong sense of territory and may attack other invading hamsters.

3. It may be that the female hamster lacks nutrition after giving birth and eats her babies. If the male hamster protects her babies, the female hamster may attack the male hamster.

Tip:

After the female hamster becomes pregnant, male and female hamsters should be raised separately, and the babies should also be isolated for a period of time after the hamsters give birth.