Less than 900 ##0 gorillas remain in the wild as a result of deforestation , poaching . A 2012 census conducted by the Uganda Wildlife Authority identified 400 mountain gorillas now living in Bwindi National Park bringing the overall population estimate up to 880 , up from 786 estimated in 2010 . Gladys Williams - Zikusoka has spent 20 years spearheading strategy for gorilla / human co - existence . She says each gorilla population provides $ 1 million for conservation but tourism comes at a cost . She is showing the effect of human interaction with world 's largest primates .
Less than 900 ##0 gorillas remain in the wild as a result of deforestation , poaching . Gladys Williams - Zikusoka has spent 20 years spearheading strategy for gorilla / human co - existence . She says each gorilla population provides $ 1 million for conservation but tourism comes at a cost . She is showing the effect of human interaction with world 's largest primates .