Loic Poidevin / Indian flapshell turtle (Lissemys punctata) out of water, Keolado Ghana National Park, Bharatpur, Rajasthan, India

Barry Mansell / Florida softshell turtle (Apalone ferox), Everglades National Park, South Florida, USA, May

Rolf Nussbaumer / Spiny softshell (Apalone spinifera) adult basking on the river bank, Dinero, Lake Corpus Christi, South Texas, USA.

Konrad Wothe / Spiny softshell turtle (Apalone spinifera) captive

Nature Production / Chinese softshell turtle (Pelodiscus sinensis) eggs in nest in ground, Japan

Nature Production / Chinese softshell turtle (Pelodiscus sinensis) hatching from egg, Japan

Nature Production / Chinese softshell turtle (Pelodiscus sinensis) hatching from egg, walking away, Japan

Chien Lee / Malayan Softshell Turtle (Dogania subplana), Bintulu, Borneo, Malaysia

Konstantin Mikhailov / Chinese soft-shelled turtle (Pelodiscus / Trionyx sinensis) resting on stone in river, River Bikin, Northern Ussuriland, Far East Russia, July.

Thomas Marent / Malayan Softshell Turtle (Dogania subplana), Gunung Leuser National Park, northern Sumatra, Indonesia

Thomas Marent / Malayan Softshell Turtle (Dogania subplana), Gunung Leuser National Park, northern Sumatra, Indonesia

Thomas Marent / Malayan Softshell Turtle (Dogania subplana) in shallow water, Gunung Leuser National Park, northern Sumatra, Indonesia

Wild Wonders of Europe / Zankl / Nile soft shelled turtle (Trionyx triunguis) Dalyan Delta, Turkey, July 2009

John Cancalosi / Fossilised Softshell turtle, from the Eocene period, Specimen Courtesy Geo Decor, Green River Formation, Wyoming, USA

Guy Edwardes / Head of Florida Softshell Turtle (Apalone ferox) Ding Darling National Wildlife Refuge, Sanibel Island, Florida, USA

Shattil & Rozinski / Spiny softshell turtle (Apalone spinifera) swimming with head exposed out of water, Texas, USA

Shattil & Rozinski / Spiny softshell turtle (Apalone spinifera) portrait, on tree stump, Texas, USA

Shattil & Rozinski / Spiny softshell turtles (Apalone spinifera) basking on log in water, Texas, USA

Tim Fitzharris / Softshell Turtle (Trionychidae) in underbrush looking up, Florida

David Kjaer / Smooth Softshell (Trionyx / Apalone muticus) female resting on rock in water, Texas, USA

Pete Oxford / Indian Flapshell turtle (Lissemys punctata) Gujarat, India.

Rod Williams / Chinese softshell turtle {Pelodiscus / Trionyx sinensis} captive, from China

Nature Production / Chinese Softshell Turtle {Pelodiscus sinensis} Japan

Pete Oxford / Softshell Turtle (Trionychinae) covered with pond weed, Bharatpur National Park, Rajasthan, India

Pete Oxford / Softshell Turtle (Trionychidae) covered with pond weed, Bharatpur National Park, Rajasthan, India

Barry Mansell / Gulf coast smooth softshell turtle (Apalone mutica calvata) Escambia river, Florida, USA

Rob Tilley / Smooth Softshell Turtle (Apalone mutica) portrait, Everglades NP, Florida, USA

Rod Williams / Chinese soft shelled turtle {Pelodiscus / Trionyx sinensis} captive, from China

Rob Tilley / Smooth softshell turtle {Apalone mutica} Everglades NP, Florida, USA.

Barry Mansell / Eastern spiney softshell turtle {Apalone s spinifera} Escambia river, Florida, USA

Barry Mansell / Eastern spiney softshell turtle {Apalone s spinifera} Escambia river, Florida, USA

Konstantin Mikhailov / Chinese softshell turtle {Pelodiscus sinensis} Primorsky, Far East Russia (Ussuriland)

Barry Mansell / Gulf coast smooth softshell turtle {Apalone mutica calvata} Florida, USA