As early as 2000, the World Wildlife Fund and Wildlife Conservation Society proposed the USPS create a semi-postal stamp to help raise money for wildlife conservation. Their efforts paid off when Congress passed the Multinational Species Conservation Funds Semi-postal Stamp Act of 2010.
Issued on September 20, 2011, the semi-postal stamp pictures an Amur tiger. Also known as the Siberian tiger, the Amur once roamed Western and Central Asia. Their organs and bones, used in Asian medicine, and their lush pelts made them a profitable target for poachers.
According to a WWF representative, “This is an easy way for individuals to use their purchasing power to help save vanishing species every time they mail a letter. By purchasing these stamps, anyone can play a direct role in protecting some of our most iconic and endangered wildlife.”