The deadliest snake according to ethnobiological perception of the population of the Alto Juruá region, western Brazilian Amazonia.

Introduction: We examined the ethnobiological perception of the population of the Alto Junta region about different snake species, in terms of their dangerousness and manifestations of envenomation. Methods: We interviewed 100 villagers who were active in the forests. Results: Lachesis muta was considered the most venomous snake. and Bothrops atrox appeared to be the most feared snake species. Conclusions: The high incidence, severity, and 'nodality of B. atrox bites and the severity and mortality of L. muta bites were the factors that contributed to these species being perceived as the most feared and venomous snakes.