Yashpal Rathore / Golden frog (Hylarana aurantiaca) waterfall in background. Coorg, Karnataka, India.

Yashpal Rathore / Bronze frog (Hylarana temporalis), near cascade waterfall. Agumbe, Karnataka, India.

Yashpal Rathore / Bronze frog (Hylarana temporalis), near forest stream. Coorg, Karnataka, India.

Laurent Geslin / African common toad / Gutteral toad (Bufo gutturalis) in front of waterfall. Mauritius. Introduced species.

Cyril Ruoso / Goliath Frog (Conraua goliath) at base of cascade, endangered, Cameroon

Pete Oxford / Groete Creek Carrying Frog (Stefania evansi) mother carrying froglets on back, Kaieteur Falls, Potaro River, Kaieteur National Park, Guyana

Pete Oxford / Beebe's Rocket Frog (Colostethus beebei), Kaieteur Falls, Potaro River, Kaieteur National Park, Guyana

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

Michael Hutchinson / Cape river frog (Amietia fuscigula) resting near waterfall, Cederberg, South Africa, December.

Kevin Schafer / Beebe's Rocket Frog (Colostethus beebei) in Bromeliad (Brocchinia micrantha), Kaieteur Waterfall, Kaieteur National Park, Guyana