Absence of apnea in armadillos covered by soil.
The armadillo Chaetophractus villosus shows a remarkable respiratory adaptation when the nostrils are completely covered by soil: it is able to maintain efficient respiratory movements with the corresponding filling of the lungs, thanks to a mechanism that allows it to use the air filling the space between the soil particles, without invasion of the nasal cavities by those particles.
D000758:Anesthesia; D000818:Animals; D001135:Armadillos / Q000502:physiology*; D004562:Electrocardiography; D004569:Electroencephalography; D005260:Female; D008297:Male; D009296:Nasal Cavity / Q000502:physiology; D012119:Respiration; D012987:Soil; D004490:Xenarthra / Q000502:physiology*
D012987:Soil