Less than 900 mountain gorillas remain in the wild as a result of deforestation , poaching . Comment: She says each gorilla group provides $ 1 million for locals but tourism comes at a cost . Research is showing the effect of human interaction with world 's largest primates .
Less than 900 mountain gorillas remain in the wild as a result of deforestation , poaching . Gladys Kalema-Zikusoka has spent 20 years spearheading strategy for gorilla/human co-existence . She says each gorilla group provides $ 1 million for locals but tourism comes at a cost . Research is showing the effect of human interaction with world 's largest primates .