There is a big possibility that the two that died could have been pregnant. I bought the three together and they were kept in a cage with 1 male running around. 2 out of the 3 died and the other one is still perfectly fine.

Quote Originally Posted by python.princess
i actually had 3 mice gang up and eat the 4th, who was pregnant. they had plenty of food and water..... but, no, i wouldn't feed one to my snake without knowing why it died.
Is there a reason why they would do that in a new cage and not in their old one?
I've heard of mice becoming canabalistic under certain circumstances, but I don't think I've heard that one.