Is the brown Treesnake venomous?
As a rear-fanged snake from the family of Colubrid snakes, brown Treesnakes are often classified as non-venomous. However, as snakes on Guam (with the abundantly available food) have grown to longer lengths than what is found in their native range, some reactions to the brown Treesnake bite have resulted on Guam, particularly with small children where there was evidence that the snake had an opportunity to chew on its victim. These cases are now treated very seriously at hospitals on Guam, and while no known deaths have resulted from these bites, the snake has been reclassified as mildly venomous. This snake is still not considered dangerous to an adult human.