title: Heart poisons in the monarch butterfly. Some aposematic butterflies obtain protection from cardenolides present in their food plants.
mesh_terms: D000818:Animals; D002297:Cardanolides / Q000032:analysis*; D002854:Chromatography, Paper; D002855:Chromatography, Thin Layer; D006458:Hemolymph / Q000032:analysis; D007313:Insecta; D010944:Plants
chemical_list: D002297:Cardanolides