Seen curled into an overhand knot on a flat surface revealed by a flashlight during the night

redtailed pipe snake cylindrophis ruffus cylindrophis snake species cylindrophiidae slither viperidae herpetologist herpetology serpentes squamata wildlife in thailand herping reptiles species venom reptilia southeast asia nature in thailand scales herper wildlife genus common pipe herp predators stripe endemic toungue conservation wild animals animals venin nature nocturnal fangs jungle night unesco breathing natural habitat cylinder world heritage tropical bokeh bamboo rainforest green tree