Unsung Heroes of Wildlife Conservation: Why July 31 is Observed as World Ranger Day – News18 August 3, 2019 | No Comments Unsung Heroes of Wildlife Conservation: Why July 31 is Observed as World Ranger Day News18 World Ranger Day is also held to commemorate rangers killed or injured in the line of duty. “wildlife preservation” – Google News Wildlife | Tags: World, Conservation, Wildlife, July, Ranger, Heroes, News18, Unsung, Observed