Hello Everyone. I'm new to the forum page here and have been breeding mice successfully so far for 6 months. Last night before i went to bed I had checked on my newest litter that was about 2 weeks old and there were a total of 12 pups. this morning when I awoke to my shock 11 of the pups completely vanished with no trace. I thoroughly searched the cage and bedding thinking they have buried themselves to keep warm and found nothing. Next thought that crossed my mind was that mommy killed and ate them but again no traces of blood or remains were found. there is also no way the could have crawled out, do to the depth of the cage. Any thoughts or helpful information would be greatly helpful.