Baby rats were 3 weeks old. Mother rat had food and water aplenty. I heard some squeaking and looked over. The mother rat had the baby pinned to the floor by the neck, I opened it up and pushed her off him, she had bit into his neck and he twitched and died.

She has 11 other babies, all healthy, not sure what provoked this, I was close to smashing her head into the floor, but I didn't know what had caused it, and she still needs to take care of her other babies. I counted them, 1 more strike and she is snake food.

Thoughts?