Bury her own pups??

[WhyTeDraGon]

My fiance told me today that his sister's dog buried 2 of her pups. Supposedly she took them outside, from inside, and buried them. Of course they are dead now.
I dont know the situation well...but I do know my sister in law doesnt care much for her animals (she loves them, yes, but she cant afford them financially)...and brother and sister mated, had 9 pups..one with a missing tail (inbred deformity) and smothered 3 or 4, cant remember..by laying on them. And now she buried 2 of them.

What could possibly cause a dog to bury her own pups? Perhaps it's because she is under 1 year of age and this is her first litter and she is not sure what to do with them? Or possibly stress? I dont know if the male is housed near the female..but I DO know that my female Poodle would snap at the father of the pups if he even came 5 feet near them.
So hmmm...what do you all think could be the cause of this?
I will try to get more info on the situation this weekend, and go over there and help her with the mother and pups so it doesnt happen again.

 

[8 leg wonder]

There might have been something wrong with them, I seen a dog bury a pup that had broken collar bones that wasn't eating

 

[BGBYTOY]

When there is Deformity in the Pups, the Female can sence this and will kill them off, I have seen them Bury them as said, Eat Them, or just maul them usually with their mouths until dead..

sad, But the way of life..

 

[ingas866]

you hit the nail. they had something wrong and the mom could not have made milk so she could not feed them.