title: Crowding and isolation: determinants of agonistic and food-seeking behavior in Norway rats.
mesh_terms: D000374:Aggression; D000818:Animals; D001070:Appetitive Behavior; D003163:Competitive Behavior; D003216:Conditioning, Operant; D003441:Crowding; D005106:Exploratory Behavior; D005247:Feeding Behavior; D006801:Humans; D008297:Male; D009664:Norway; D051381:Rats; D012919:Social Behavior; D012934:Social Isolation