Founded in 1974 by Shirley McGreal, International Primate Protection League (IPPL) is a global conservation organization that works to protect nonhuman primates, especially monkeys and apes (chimpanzees, orangutans, gibbons, and gorillas).

IPPL has 30,000 members, branches in the United Kingdom, Germany, and Australia, and field representatives in 31 countries. Its advisory board consists of scientists, conservationists, and experts on primates, including the world-renowned primatologist Jane Goodall, whose famous studies and books are considered the authoritative texts on chimpanzees. Her studies have also heightened public interest and sympathy for chimpanzees and other nonhuman primates.

IPPL runs a sanctuary and rehabilitation center at its Summerville, South Carolina headquarters, which houses two dozen gibbons and other abandoned, injured, or traumatized primates who are refugees from medical laboratories or abusive pet owners. IPPL concentrates on investigating and fighting the multi-million dollar commercial trafficking in primates for medical laboratories, the...