Three king cobra nests discovered by residents in Yunnan, China, have given scientists an unusually close look at a part of the snake’s life that remains poorly documented. The nests, found between 2020 and 2025 in different parts of the province, contained 30, 72 and 25 eggs. The largest clutch, found west of Kunming, was particularly unexpected, with two king cobras observed guarding the same nest during several visits. Scientists could not establish the snakes’ sexes, leaving open the possibility that two females had contributed to the unusually large clutch. The other nests were found in bamboo forests, including one where young king cobras were later seen emerging. The observations are significant because they represent the first documented king cobra nesting and clutch-size records in China outside the Xizang Autonomous Region. The findings also add to growing evidence that the species’ nesting behaviour may be more varied than previously recorded. The observations are especially valuable because king cobras are difficult to study in the wild, and their reproductive behaviour is still not fully understood. By documenting nest locations, egg numbers and parental behaviour, the findings provide rare details that can help researchers better understand how the species reproduces in different environments.
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