Michael D. Kern / Maroon eye / Moon frog (Leptopelis uluguruensis) captive, from East Africa

Alex Hyde / Madagascar reed frog {Heterixalus madagascariensis} in front of waterfall, montane rainforest. Andasibe-Mantadia NP, Eastern Madagascar.

Alex Hyde / Madagascar reed frog {Heterixalus madagascariensis} underside viewed through glass, Masoala Peninsula National Park, north east Madagascar.

Willem Kolvoort / Tadpoles of Common frog (Rana temporaria) amongst reed stems in sand winning pit, Holland

Pete Oxford / Lake Titicaca with local Indian in traditional reed boat and Giant Titicaca frog {Telmatobius culeus} in foreground, captive release, Bolivia

Tony Phelps / Marbled reed frog on reed {Hyperolius marmoratus} Mapumalanga, South Africa

Pete Oxford / Giant Titicaca frog {Telmatobius culeus} and researcher Esther Perez, Lake Titicaca. Boliivia / Peru. Totora reed boat in background. 2002

Mark Carwardine / Reed / Sedge frog (Hyperolius sp) captive, from Africa

Mark Carwardine / Marbled / Cagle's / Painted reed frog (Hyperolius marmoratus) captive, from rainforests of East Africa

Chris Mattison / Cochran's running frog (Kassina cochranae), captive, occurs in West Africa

Chris Mattison / Cochran's running frog (Kassina cochranae), captive, occurs in West Africa

Sergey Gorshkov / Reed frog (Hyperolius sp) Okavango Delta, Botswana

Bert Willaert / Male Baumann's Reed Frog (Hyperolius baumanni) caught and consumed by a huntsman spider. Amedzofe, Ghana.

Bert Willaert / Mating pair of Baumann's Reed Frogs (Hyperolius baumanni). Ghana, October.

Christophe Courteau / Water lily flowers (Nymphaea nouchati) with Reed frog, Okavango Delta, Botswana, March

Alex Hyde / Madagascar reed frog {Heterixalus madagascariensis} on rainforest vegetation. Masoala Peninsula National Park, north east Madagascar.

Alex Hyde / Madagascar reed frog {Heterixalus madagascariensis}. Masoala Peninsula National Park, north east Madagascar.

Alex Hyde / Reed Frog {Heterixalus madagascariensis} silhouette on backlit leaf in tropical rainforest. Masoala Peninsula National Park, north east Madagascar.

Nick Garbutt / Madagascar Reed frog (Heterixalus madagascariensis) on tropical forest foliage, Masoala National Park, Madagascar.

Nick Garbutt / Madagascar Reed frog (Heterixalus madagascariensis) underside, Masoala National Park, Madagascar.

Rolf Nussbaumer / Green Treefrog (Hyla cinerea) two adults sleeping on reed, Fennessey Ranch, Refugio, Coastal Bend, Texas Coast, USA

Wild Wonders of Europe / Maitland / Marsh frog (Pelophylax / Rana ridibundus) escaping predators by diving to the bottom of the lake amongst reed roots and stems, Lagadin region, Lake Ohrid, Galicica National Park, Macedonia, June 2009

Bruno D'Amicis / Trilling / Parker's reed frog (Hyperolius parkeri), Kaffa Zone, Southern Ethiopia, East Africa December 2008

Michael D. Kern / African Reed Frog {Hyperolius sp} captive, from south of sahara Africa

Michael D. Kern / African Reed Frog {Hyperolius sp} captive, from south of sahara Africa

Barry Mansell / Forest treefrog {Leptopelis natalensis} captive, from Africa

Barry Mansell / Marbled reed frog {Hyperolius marmoratus taeniatus} Natal, South Africa

Pete Oxford / Painted reed frog {Hyperolius sp} Okavango delta, Botswana

David Shale / Red-legged pan frog (Kassina maculata) Arabuko Sokoke forest, Kenya

Piotr Naskrecki / Long-nosed Reed Frog (Hyperolius nasutus) on stem, Okavango Delta, Botswana

Piotr Naskrecki / Long-nosed Reed Frog (Hyperolius nasutus) clinging to stem, Botswana

Piotr Naskrecki / Painted Reed Frog (Hyperolius marmoratus) portrait, Okavango Delta, Botswana

Piotr Naskrecki / Painted Reed Frog (Hyperolius marmoratus) changing color from darkly patterned to white by contracting or expanding skin cells called chromatophores, white skin reflects sunlight effectively lowering...

Piotr Naskrecki / Painted Reed Frog (Hyperolius marmoratus) clinging to reed, Okavango Delta, Botswana

Piotr Naskrecki / Painted Reed Frog (Hyperolius marmoratus) clinging to stem, Botswana

Piotr Naskrecki / Sierra Leone Reed Frog (Hyperolius chlorosteus) clinging to branch, Guinea, West Africa

Jabruson / Pygmy sedge frog {Hyperolius pusillus} Tsavo NP, Kenya

John Cancalosi / Leaf frog on reed {Phyllomedusa bicolor}, toxic skin secretion, Peru, South America

Tony Phelps / Reed frog on reed {Hyperolius sp} South Africa

Nick Garbutt / Reed frog {Heterixalus punctatus} Ranomafana NP, Madagascar

Tony Phelps / Marbled reed frog {Hyperolius marmoratus} Mapumalanga, South Africa

Pete Oxford / Totoro reed boat + Giant Titicaca frog {Telmatobius culeus} Lake Titicaca, Peru

Nick Garbutt / Madagascan reed frog {Heterixalus madagascariensis} Masoala NP, Madagascar

Nick Garbutt / Madagascar reed frog {Heterixalus madagascariensis} Masoala NP, Madagascar.

Mark Moffett / African Reed Frog (Hyperolius nitidulus) wet skin hardens into shellac and keeps frog glued onto stick through the heat of summer, Ivory Coast temperatures up to 43 degrees Celsius, Ivory Coast, Afric...

Michael & Patricia Fogden / Painted Reed Frog (Hyperolius marmoratus) male calling from seasonal pond, savannah, South Africa

Gerry Ellis / Tinker Reed Frog (Hyperolius tuberilinguis) on Fever Tree bark, Ndumo Game Reserve, South Africa

Gerry Ellis / Argus Reed Frog (Hyperolius argus) juvenile on leaf, Ndumo Game Reserve, South Africa

Gerry Ellis / Painted Reed Frog (Hyperolius marmoratus) on leaf, Ndumo Game Reserve, South Africa

Gerry Ellis / Painted Reed Frog (Hyperolius marmoratus), Ndumo Game Reserve, South Africa

Gerry Ellis / Argus Reed Frog (Hyperolius argus) female portrait, Ndumo Game Reserve, South Africa

Gerry Ellis / Painted Reed Frog (Hyperolius marmoratus) clinging to leaf, Ndumo Game Reserve, South Africa

Michael & Patricia Fogden / Painted Reed Frog (Hyperolius marmoratus) male calling from seasonal pond, savannah, South Africa

Michael & Patricia Fogden / Water Lily Reed Frog (Hyperolius pusillus) male calling to female, seasonal ponds, savannah, South Africa

Michael & Patricia Fogden / Water Lily Reed Frog (Hyperolius pusillus) male calling to female, seasonal ponds, savannah, South Africa

David Shale / Pygmy sedge / Translucent reed frog {Hyperolius pusillus} Arabuko Sokoke forest, Kenya

David Shale / Spiny reed frog {Afrixalus fornasinii} feeding on Foam nest treefrog tadpoles, Kenya

David Shale / Argus reed frog female {Hyperolius argus} Arabuko Sokoke forest, Kenya

David Shale / Argus reed frog female {Hyperolius argus} Arabuko Sokoke forest, Kenya

David Shale / Argus reed frog male {Hyperolius argus} Arabuko Sokoke forest, Kenya

David Shale / Spiny reed frog {Afrixalus fornasinii} Arabuko Sokoke forest, Kenya

David Shale / Pygmy sedge Translucent reed frog {Hyperolius pusillus} Arabuko Sokoke forest, Kenya

David Shale / Spiny reed frog, white in sunlight {Afrixalus fornasinii} Arabuko Sokoke forest, Kenya

David Shale / Spiny reed frog, white in sunlight {Afrixalus fornasinii} Arabuko Sokoke forest, Kenya

David Shale / Two Argus reed frog males {Hyperolius argus} Arabuko Sokoke forest, Kenya

David Shale / Tinker reed frogs mating on leaf {Hyperolius tuberilinguis} Arabuko Sokoke Forest, Kenya

David Shale / Trilling reed frog on leaf {Hyperolius parkeri} Arabuko Sokoke Forest, Kenya

David Shale / Trilling reed frog on leaf {Hyperolius parkeri} Arabuko Sokoke Forest, Kenya

Premaphotos / Tree frog (Leptopelis sp) in cryptic daytime resting pose on a leaf in rainforest, Uganda

Pete Oxford / Marbled reed frog {Hyperolius marmoratus} on leaf, Okavango Delta, Botswana

PREMAPHOTOS / Pygmy bird-dropping frog (Afrixalus pygmaeus) sitting in full view, protected by its resemblance to a bird-dropping. Kenya

PREMAPHOTOS / Marbled reed frog (Hyperolius marmoratus) pair in amplexus at night, South Africa

PREMAPHOTOS / Marbled reed frog (Hyperolius marmoratus) male with inflated throat sac, calling at night. South Africa

PREMAPHOTOS / Marbled reed frog (Hyperolius marmoratus) male with inflated throat sac, calling at night. South Africa

PREMAPHOTOS / Boettgers tree frog (Heterixalus boettgeri) on a leaf, Madagascar

PREMAPHOTOS / Marbled reed frog (Hyperolius marmoratus) on a leaf, South Africa

PREMAPHOTOS / Red spotted reed frog (Hyperolius rubrovermiculatus) on lichen-covered log in the Shimba Hills, Kenya

David Shale / Spiny reed frog {Afrixalus fornasinii} feeding on Foam nest tadpoles Kenya Arabuko Sokoke

David Shale / Spiny reed frog white in sunlight {Afrixalus fornasinii} Arabuko Sokoke forest Kenya