Hidden Gems of Cambodian Caves

The limestone caves that run across northwestern Cambodia are still a mystery. A recent field trip to the province of Battambang revealed several animals that science has never seen before. Among them are a bright turquoise pit viper, a snake that can glide through the air, new kinds of geckos, tiny snails and even a pair of millipedes. The team studied 64 caves on ten hills from November 2023 to July 2025. They discovered that each hill acts like a small island where life evolves separately. “It’s like nature doing the same experiment over and over in different rooms, ” explained a visiting biologist. While some of the new species are still being officially named, others have already entered science records. The research also found well‑known endangered animals such as pangolins, peafowl and macaques living in the same rocky terrain.The work was done by a conservation charity from the UK together with Cambodia’s Ministry of Environment and local scientists. They spent nights in dark, rocky passages, using torches to spot reptiles that come out after sunset. The limestone region covers about nine percent of Cambodia’s land, yet most of it remains unexplored. In one hill in the Banan district, 14 caves had never been surveyed before. The scientists say they have only begun to scratch the surface of what lives there. Many caves double as religious sites and tourist attractions, but they face danger from quarrying for cement, too many visitors, hunting, logging and fires. Destroying a cave could wipe out species that exist nowhere else. The team is working with the government to give these areas a protective status so that future generations can learn about and enjoy them safely.