title: Geographic and individual variation in Bornean gibbons, with remarks on the systematics of the subgenus Hylobates.
mesh_terms: D000818:Animals; D002508:Cephalometry; D005260:Female; D015186:Hominidae / Q000033:anatomy & histology / Q000145:classification*; D007214:Indonesia; D008297:Male; D012737:Sex Factors; D013045:Species Specificity