title: Schooling behavior of fish: an opiate-dependent activity?
mesh_terms: D000818:Animals; D001921:Brain / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D004723:Endorphins / Q000494:pharmacology / Q000502:physiology*; D006054:Goldfish; D007276:Injections, Intraventricular; D007398:Interpersonal Relations; D009270:Naloxone / Q000494:pharmacology; D011957:Receptors, Opioid / Q000187:drug effects; D012919:Social Behavior; D001615:beta-Endorphin
chemical_list: D004723:Endorphins; D011957:Receptors, Opioid; D009270:Naloxone; D001615:beta-Endorphin