AdvertisementDNA 'Barcode' To Help Nab Illegal Wildlife TradersSeptember 14, 2009Christopher JoycefacebookEmailLeather products found at a crafts market in Brazzaville, Congo. They may have originated from Mali, as similar products were found in the shop of Malian leather workers who illegally ship in Nile crocodile and other skins to Congo. (AMNH)