If this fails, he goes into a full charge, screaming and waving his arms. The gorilla's easygoing nature made them vulnerable to human hunters. They are shot for food, as trophies and to get their young as pets. They are also hunted as pests on crops. The gorillas, however, are more seriously threatened by habitat destruction.
Gorillas reproduce very slowly and thus populations take a long time to recover.
Females give birth only every 3-4 years, unless they lose their infants. A female may produce only 2-3 surviving young in her lifetime. A conservation programme in Rwanda was established in 1978, funded by tourism. This may help reduce threats to the habitat and stabilise the population. More primates More animals Copyright Singapore Zoological Gardens Docents 2000.