Quantitative estimation of islet tissue in echidnas.
D000818:Animals; D005247:Feeding Behavior; D005260:Female; D007515:Islets of Langerhans / Q000166:cytology; D008297:Male; D009007:Monotremata / Q000033:anatomy & histology*; D004442:Tachyglossidae / Q000033:anatomy & histology*