human
Guinea pigs,
gpt
only that the subterranean dwellings of the _biscacha_ are larger, from the needs of a bigger-bodied animal. But, strange to say, in these of the pampa there exists the same queer companionship as in those of the prairie--a bird associating with the quadruped--a species of owl, the _Athene cunicularia_. This shares occupation with the _biscacha_, as does the other, an allied species, with the prairie dog. Whether the bird be a welcome recipient of the beast's hospitality, or an intruder upon it, is a question still undetermined; but the latter seems the more probable, since, in the stomachs of owls of the northern species, are frequently found prairie dog