Half of Earth’s Wildlife Lost Since 1970, Report Finds
Wildlife populations have been cut in half over the past four decades, a new report shows. The number of mammals, birds, reptiles, amphibians and fish on Earth dropped by 52 percent from 1970 to 2010, according to the World Wildlife Fund's newly released Living Planet Report. The findings are based on the Living Planet Index, which is a database maintained by the Zoological Society of London to track more than 10,000 representative populations of vertebrates (animals with a backbone).
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