Researchers have discovered multiple rare and new species in previously unexplored caves in Cambodia, including a flying snake and a florescent-turquoise pit viper.Those creatures were found during a multi-year biodiversity study that surveyed more than 60 limestone caves in western Cambodia's Battambang province. The project took researchers to 10 different hills across the region known for its karsts, which are limestone cliffs filled with hidden caves and ecosystems, according to a report by Fauna & Flora Cambodia, an organization that led the study alongside the country's ministry of environment. Cambodia's karst formations have historically been some of the least-studied of their kind, the organization said.…