The illegal trade as a whole is worth somewhere between $7 billion and $23 billion. In just one three-year period, about 100,000 elephants were killed, largely for their ivory tusks sold on the black market throughout the world. More than 1,200 rhinos were poached in South Africa last year.
The UNEP report says the illegal trade was responsible for the killing of 643 chimpanzees, 48 bonobos, 98 gorillas and 1,019 orangutans from 2005 to 2011.
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