Chien Lee / Lowland rainforest with sunrays cutting through mist, Cuc Phuong National Park, Ninh Binh, Vietnam

Mark Moffett / Tam Dao Newt (Paramesotriton deloustali) identified by the features of their tails, Tam Dao National Park, Vietnam

Mark Moffett / Foam Nest Tree Frog (Polypedates dennysi) newly identified species of Gliding Frog, the largest in the world, Tam Dao National Park, Vietnam

Mark Moffett / Frog (Anura) atop its egg mass, Tam Dao National Park, Vietnam

Mark Moffett / Marjorie Matocq inspecting live salamanders and lizards at research station, Tam Dao National Park, Vietnam

Mark Moffett / Tam Dao village and the old French road, Tam Dao National Park, Vietnam

Mark Moffett / Villas built by French colonials, Tam Dao National Park, Vietnam

Mark Moffett / Twelve inch long Flatworm, Tam Dao National Park, Vietnam

Mark Moffett / Herpetologist Ted Papenfuss tries snake meat at a specialty restaurant, Hanoi, Vietnam

Mark Moffett / Snake meat is prepared for cooking in restaurant, Hanoi, Vietnam

Mark Moffett / Snake is skinned alive at a Hanoi restaurant, blood, heart and genitals at right are thought to confer virility, Vietnam

Mark Moffett / Mark Moffett photographs a researcher inserting transmitter in viper, Tam Dao, Vietnam

Mark Moffett / Asian Pit Viper (Trimeresurus sp) is forced to swallow radio transmitter, Tam Dao National Park, Vietnam

Mark Moffett / Tourists from cities come to Tam Dao for weekends and holidays, children playing in pool near the border of Tam Dao National Park, Vietnam

Mark Moffett / Sunset over the Tam Dao Mountains, Tam Dao National Park, Vietnam

Mark Moffett / Herpetologists donning pantyhose as a deterrent to Leeches, Tam Dao National Park, Vietnam

Mark Moffett / Mark Moffett and store proprietor with live snake in specialty store selling snake wine, Hanoi, Vietnam