According to experts, these caves are small and narrow with sandy ... Researchers expect more new species will be discovered if Vietnam’s karst regions continue to be surveyed.

A new species of millipede named Sinocallipus similis was discovered in two caves in the Na Hang Nature Reserve in Northern Vietnam, researchers say. Nguyen, Stoev, and Vu (2025) Zoosystematics ...

Scientists have discovered a new land snail species, Calybium plicatus, in the first sinkhole of Son Doong Cave, underscoring Vietnam’s extraordinary biodiversity. Specimen of the newly discovered ...