Musk, Amber, Animalic

in perfumery, animal notes were traditionally rendered through deer musk, castoreum, ambergris and civet cats, but nowadays, ethical concerns for these animals' welfare have rendered their use obsolete and the substitution with synthetic variants a rule. (Only ambergris is by its nature cruelty-free, being naturally expelled by the sperm whale itself in the ocean, but it's a very rare and expensive ingredient for most commercial use, so synthetics replicating its aroma are the standard practice).