Martin Willis / Torrent Treefrog (Litoria nannotis) also known as Waterfall Frog, near creek, Kuranda, Queensland, Australia

Martin Willis / Torrent Treefrog (Litoria nannotis), also known as Waterfall Frog, in creek, Kuranda, Queensland, Australia

Martin Willis / Torrent Treefrog (Litoria nannotis), also know as Waterfall Frog, in creek, Kuranda, Queensland, Australia

Kevin Schafer / Waterfall / Torrent Treefrog (Litoria nannotis), Wild frog in waterfall spray, ENDANGERED, Atheron Tablelands, Queensland - Threatened frog is adapted to life in falling water and slippery rocks.

Kevin Schafer / Torrent Treefrog (Litoria nannotis) in waterfall spray, Atherton Tableland, Queensland, Australia

Bruce Thomson / Waterfall frog (Litoria nannotis) resting on a wet rock near waterfall at night, Wooroonooran National Park, Wet Tropics World Heritage area, Queensland, Australia.

Bruce Thomson / Waterfall frog (Litoria nannotis) resting on wet rocks night, Wooroonooran National Park, Wet Tropics World Heritage area, Queensland, Australia.

Bruce Thomson / Northern stony creek frog (Litoria jungguy) resting in shallow stream at night, Mission Beach, Queensland, Australia.

Bruce Thomson / Pearson's tree frog (Litoria pearsoniana) resting on rock in stream at night, Cunningham's Gap, Queensland, Australia.

Bruce Thomson / Waterfall frog (Litoria nannotis) on vertical rock face in waterfall, Wet Tropics World Heritage area, Queensland, Australia.

Chris Mattison / Torrent tree frog / Waterfall frog (Litoria nannotis), Josephine Falls, Queensland, Australia

Guy Edwardes / Hourglass treefrog (Dendropsophus ebraccatus) on vegetation beside mountain stream. In cloud forest, Arenal, Costa Rica. Controlled conditions.

Guy Edwardes / Masked treefrog (Smilisca phaeota) on leaves beside mountain stream. Arenal, Costa Rica. Controlled conditions.