Historically, rhino horn and tiger bone were used in traditional Chinese medicine to treat various illnesses, despite the lack of any evidence of their effectiveness. In fact, rhino horn is simply keratin, a protein that is found in human fingernails and hair. Rhino horn is used to treat everything from cancer to gout in traditional Chinese medicine. Similarly, a paste made from crushed tiger bone is thought to treat a variety of ailments, including rheumatism and back pain.
The number of African rhinos poached in 2015 set a new record, according to the International Union for Conservation of Nature. Some 1,338 were killed, which is the highest level since the current poaching crisis began in 2008. Since that time, nearly 6,000 African rhinos have been killed.
