4K Freshwater Black Marsh Turtle, Siebenrockiella Crassicollis

tortoise turtle shell terrapin endangered kaeng environment black wildlife herpetology siebenrockiella vulnerable crassicollis wet species animal chelonia freshwater habitat reptile wilderness asia sacred nature thailand outdoors natural cold blooded ground krachan plastron testudines ectotherm wood southeast hingeless wild chinese marsh national temple park forest retract medicine smiling siamese stretch traditional