Eastern gorilla
Grauer's gorillas and mountain gorillas were previously thought to be two of the three subspecies of one single species, the gorilla ("Gorilla gorilla"). However, genetic research has shown that the two eastern subspecies are far more closely related than the western subspecies: the western lowland gorilla ("G. gorilla gorilla"), which justified the separate classification. The two eastern subspecies are now classified as "G. beringei".
International Primate Day
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.
Primates are a very large family of about 200 species, include monkeys, bonobos, lemurs, orangutans, et al. Statements on great apes which focus largely or entirely on apes would not include all primates.