For over 160 years, the Himalayan pit viper was considered a single species, but a new study published in ZooKeys has revealed that it actually consists of five distinct species. Led by Daniel Jablonski at Comenius University in Slovakia, researchers utilized DNA from both modern and preserved specimens to uncover this surprising diversity. The newly identified species include Gloydius hindukushensis, found in northwestern Pakistan, G. hazarensis in northeastern Pakistan, and G. nepalensis in central Nepal. The study highlights the importance of historical museum specimens, which provided crucial genetic information. Each species has a limited geographic range, making them vulnerable to threats such as climate change and habitat destruction. This reclassification is significant for conservation efforts and public health, as accurate identification of snake species is essential for effective medical treatment of bites, which affect thousands annually in South Asia. The findings underscore the need for updated antivenom lists and conservation strategies tailored to each distinct species.