A report released at the World Conservation Congress in Hawaii says the world's largest living primate has been listed as critically endangered, making four of the six great ape species only one step away from extinction.
The International Union for the Conservation of Nature cited illegal hunting in downgrading the status of the eastern gorilla to critically endangered on its Red List of Endangered Species on Sunday.
The list contains 24,000 species that are threatened with extinction. The organization says an estimated 5,000 eastern gorillas remain in the wild, a decline of about 70 percent over the past 20 years.
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