 Some compounds can include the parts of endangered species, including tiger bones and rhinoceros horn
which is used for many ailments (though not as an aphrodisiac as is commonly misunderstood in the West).The black market in rhinoceros horn (driven not just by TCM but also unrelated status-seeking) has reduced the world's rhino population by more than 90 percent over the past 40 years.Concerns have also arisen over the use of pangolin scales, turtle plastron, seahorses, and the gill plates of mobula and manta rays.