title: Diurnal rhythmic activity in the heart-beat of the scorpion Heterometrus fulvipes C. L. Koch.
mesh_terms: D000818:Animals; D002490:Central Nervous System; D002940:Circadian Rhythm; D006339:Heart Rate / Q000187:drug effects; D008297:Male; D012605:Scorpions / Q000502:physiology*; D014020:Tissue Extracts / Q000494:pharmacology
chemical_list: D014020:Tissue Extracts