TAIPEI (Taiwan News) — Over the weekend, a group of school children spotted a mutant Taiwan green bamboo pit viper (Trimeresurus stejnegeri) that was colored yellow.

On Sunday (Feb. 12), the Facebook page Nature Pond uploaded photos from a student field trip to the mountains to observe the local ecology. According to the page, the father of one of the students discovered a Taiwan green bamboo pit viper coiled around a tree that was yellow rather than green.

The tour was led by Lu Chun-i (呂軍逸), an insect and ecology lecturer. Some members of the group asked whether it was an albino, but according to Nature Pond, the snake is a rare mutant.

At the scene, a normal green bamboo pit viper was also present. The author of the post wrote that after informing the children about the identifying characteristics of the serpent and dispelling rumors about snakes, the adults guided the reptiles back to the woods.