They reportedly started with only a few guinea pigs, but the numbers grew out of control. One dead guinea pig was also found on the property. (Image: RSPCA Cymru)The RSPCA removed 114 guinea pigs and 31 cats from the home and took them into its care. Many of the surviving guinea pigs were found to be pregnant, further increasing the number of animals requiring care. Many of the surviving guinea pigs were found to be pregnant, further increasing the number of animals requiring care.