International Primate Day, September 1, is an annual educational observance event organized since 2005 largely by British-based Animal Defenders International (ADI) and supported annually by various primate-oriented advocacy organizations, speaks for all higher and lower primates, typically endorsing humane agendas where primates are at risk, as in research institutions or species endangerment in precarious environmental situations. In 2016, Animal Defenders International (ADI) received a celebrity endorsement from Moby for their attempt to help the Barbary macaques for that year's event.