CAPE TOWN, Aug. 1 (Xinhua) -- South African researchers have started injecting small amounts of detectable radioactive isotopes into rhino horns to deter poachers and traffickers, according to a ...

CHANGSHA, July 30 (Xinhua) -- As sweltering heat waves sweep across China, a recent tourist trend has emerged after dark. In ancient towns and even mountain parks, travelers are escaping the heat and ...