Structure and evolutionary implications of the musculi arrectores pilorum in Chiroptera.
D000818:Animals; D005075:Biological Evolution; D002685:Chiroptera; D005260:Female; D008297:Male; D009130:Muscle, Smooth / Q000033:anatomy & histology; D009132:Muscles / Q000033:anatomy & histology*; D012867:Skin / Q000033:anatomy & histology