title: Adaptive significance of the caeca in Japanese quail and spruce grouse (Galliformes).
mesh_terms: D000222:Adaptation, Physiological; D000818:Animals; D001717:Birds / Q000033:anatomy & histology*; D002432:Cecum / Q000033:anatomy & histology*; D003370:Coturnix / Q000033:anatomy & histology*; D004032:Diet; D007421:Intestine, Small / Q000033:anatomy & histology; D008297:Male