Spix's yellow-toothed cavy is a cavy-family rodent whose response to heat was studied in Brazil's northeastern Caatinga. Researchers examined how it releases heat through areas around the eyes and ears.
In Caatinga study animals, the skin around the eyes, the area in front of the eyes, the pinnae, and the vibrissae region had higher surface temperatures and were identified as heat-loss windows.
When the study's thermal conditions made radiative heat loss harder, evaporative heat loss increased. This describes the tested animals and conditions.
An extinction-risk assessment has not been added yet.