f tigers at the Panna Tiger Reserve in India has more than doubled, and enviros are calling on the government to expand the reserve’s successful conservation practices to other areas. The Panna population has grown from two to three tigers per 40 square miles to seven to eight tigers — a number high enough for healthy breeding. The Environmental Investigation Agency, an international organization that investigates and exposes environmental crimes, helped convince the government to close sandstone mines and reduce the environmental impact of diamond mines around the reserve. The government also worked to discourage tiger poaching and stop illegal logging and grazing in the reserve. One tiger a day dies from poaching or habitat loss in India.