We had been out for a few hours today, come home and found the babies dead. It was a little hot and we had the pigs outside under our bergola area, which was cooler than inside, but not too hot or in direct sunlight. The babies were 1 month and 6 days old, both Males, and kept in the same cage as their Mum. We don't know anything about the Father because the Mother was already pregnant from the pet shop, and we did not know this at the time of purchase. After we discovered the dead babies, we straight away disposed of them so the Mum would not get sick, and I immediatley cuddled the Mum. I can't tell if she is depressed at her loss or if she is sick also. They were housed inside, majority of the time, until 4 days ago where we put them in our outside laundry, because of the smell of urine inside our house. We really dont understand what happened because of the Mother still being alive and both babies and the Mother were still of normal activity and eating just as much as always right up until we returned home this arfternoon to find the babies dead. We are really puzzled, as all the guinea pigs had shown no signs or symptoms of illness what so ever.