used medicinally recreationally include morphine cocaine quinine tubocurarine muscarine nicotine ref name dewick animals analgesic drug conotoxin ziconotide natural product derived sea snail ''conus magus'' ref name p animals also represent source bioactive natural products particular venomous animals snakes spiders scorpions caterpillars bees wasps centipedes ants toads frogs attracted much attention venom constituents peptides enzymes nucleotides lipids biogenic amines etc often specific interactions macromolecular target body eg bungarotoxin cobras ref name chemical weaponry ref ref name pmid
Natural science Chemistry Natural product chemistry