grass snake, natrix natrix, close-up potrait in nature habitat. viper in sumava np, czech republic in europe

wildlife viper view venomous venom tropical trinidad terrestrial south snake salvador reptilian reptile rainforest portrait poisonous poison pet pattern nature lance jararaca honduras heather heath green front fauna europe ecuador deadly dangerous danger czech cryptic costa rica camouflaged camouflage brazilian brazil bothrops bite attack animal american amazon adder grass natrix close-up potrait habitat sumava republic