A white rhinoceros grazes in Nairobi National Park in Kenya. Africa’s rhinos are being killed in record numbers for their horns, and the problem is especially dire in South Africa, which contains about 90 percent of the rhinos on the continent. Poaching there has soared from 15 a year in 2007 to 588 so far this year. Asians, especially Vietnamese, pay the equivalent of the U.S. street value of cocaine for the horns, whose keratin is reputed to cure cancer and also ease hangovers and fever. (Associated Press)
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