Hidden Gems of Cambodian Caves

The limestone caves that stretch across northwestern Cambodia remain a tantalizing mystery. A recent expedition to Battambang province uncovered several species previously unknown to science—an eye‑catching turquoise pit viper, a gliding snake, novel gecko species, miniature snails, and even a pair of millipedes.

A Year‑Long Exploration

From November 2023 to July 2025, a team studied 64 caves on ten hills. Their findings suggest that each hill functions like an isolated island, fostering independent evolutionary experiments in the same environment.

“It’s like nature doing the same experiment over and over in different rooms,” a visiting biologist remarked.

New Life, Old Friends

While some of the newly discovered species await formal naming, others have already entered scientific records. The survey also confirmed the presence of well‑known endangered species—pangolins, peafowl, and macaques—thriving within the rocky terrain.

Collaborative Conservation

The research was carried out by a UK conservation charity in partnership with Cambodia’s Ministry of Environment and local scientists. Nights spent in the dark passages, illuminated by torches, revealed reptiles that emerge after sunset.

The Uncharted Majority

Limestone covers about nine percent of Cambodia’s land, yet most remains unexplored. In a single hill within Banan district, 14 caves had never been surveyed before, underscoring that scientists have only scratched the surface of this hidden biodiversity.

Threats and Protection

Many caves double as religious sites and tourist attractions, but they face significant threats: quarrying for cement, over‑tourism, hunting, logging, and fires. Destroying a cave could erase species that exist nowhere else.

The team is collaborating with the government to secure protective status for these areas, ensuring future generations can study and enjoy them safely.