Dried Shark's Fin, San Gabriel, California
This fin was purchased before the 2011 California law banning the possession and sale of raw or dried shark fins. The overfishing and "finning" of sharks for trade in the growing luxury markets of Asia, where fins are considered a delicacy, has contributed to a sharp decline in global shark populations. Nearly one-third of shark species are now threatened with extinction. In what is seen as an important victory for the shark conservation movement, the hammerheads and two other shark species were brought under the protection of the Convention on International Trade in Endangered Species (CITES) in 2013.