Gold, platinum, and rhino horn are among the world’s most valuable materials, with rhino horn being the most expensive. According to National Geographic Magazine, late in 2011, it fetched from $33 to $133 a gram on the streets of Vietnam. Samuel Wasser, a professor at the University of Washington in Seattle’s Department of Biology, described… Continue reading Dye and poison is being used to stop rhino poachers
Dye and poison is being used to stop rhino poachers
