green snake coiling resting on tree branch, large-eyed pit viper or trimeresurus macrops

snake animal green wildlife dangerous eye scale reptile wild nature head python zoo tree danger hunter jungle poison tropical viper closeup forest hide exotic boa endangered fear mouth predator scary skin sleep blend camouflage fang coil coiled emerald poisonous serpent venomous coldblooded color leaf branch constrictor coiling resting large-eyed pit trimeresurus macrops