Robert Valentic / Bana bubble-nest frog (Kurixalus banaensis) from high elevation rainforest along the summit trail in Bach Ma National Park, central Vietnam. Dry season.

Robert Valentic / Burmese whipping frog (Polypedates mutus) male from high elevation rainforest on the summit trail, Phong Lan in the Bach Ma National Park, central Vietnam. Dry season.

Robert Valentic / Gecko (Cyrtodactylus pseudoquadrivirgatus) from elevated rainforest habitat on the summit trail, Phong Lan, Bach Ma National Park, central Vietnam. Dry season.

Robert Valentic / Vogel's pit viper (Trimeresurus vogeli) male in elevated rainforest habitat within the Bach Ma National Park in central Vietnam. Dry season.

Robert Valentic / Narrow-mouthed frog (Microhyla marmorata) male, from montane rainforest at Phong Lan, Bach Ma National Park, Vietnam. Dry season.

Paul Bertner / Ant (Polyrhachis pubescens), Bach Ma National Park, Vietnam

Paul Bertner / Ant (Polyrhachis pubescens), Bach Ma National Park, Vietnam

Paul Bertner / Tiger Leech (Haemadipsa picta), Bach Ma National Park, Vietnam

Paul Bertner / Golden-throated Barbet (Megalaima franklinii) in nest cavity, Bach Ma National Park, Vietnam