豚鼠
Because the guinea pig has a stout, compact body, it more easily tolerates excessive cold than excessive heat. Its normal body temperature is , so its ideal ambient air temperature range is similar to a human's, about . Consistent ambient temperatures in excess of have been linked to hyperthermia and death, especially among pregnant sows. Guinea pigs are not well suited to environments that feature wind or frequent drafts, and respond poorly to extremes of humidity outside of the range of 30–70%.