Franco Banfi / Freshwater turtle (Trachemys scripta venusta) swimming amongst Water lilies leaves, Gran Cenote, near Tulum, Quintana Roo, Yucatan Peninsula, Mexico.

Alex Mustard / Suwanee freshwater turtle (Pseudemys concinna suwanniensis) swimming beneath trees in a freshwater spring. Devil Spring, Ginnie Springs, High Springs, Florida, USA

Claudio Contreras / Mesoamerican slider turtle / terrapin (Trachemys scripta venusta) in sinkhole, Cenote Carwash, near Tulum, Yucatan Peninsula, Mexico, January

Claudio Contreras / Mesoamerican slider turtle / terrapin (Trachemys scripta venusta) in sinkhole, Cenote Carwash, near Tulum, Yucatan Peninsula, Mexico, January

Tim Fitzharris / Western Box Turtle (Terrapene ornata) among Lupine (Lupinus sp) and Paintbrush (Castilleja sp), North America

Tim Fitzharris / Yellow-bellied Slider (Trachemys scripta scripta) turtle, North America

Konrad Wothe / Red-eared Slider (Trachemys scripta elegans) turtle, pair in pond, City Park, Munich, Germany

Jim Brandenburg / Western Box Turtle (Terrapene ornata) retracted in shell, South Dakota

Jim Brandenburg / Painted Turtle (Chrysemys picta) group sunning on log, Minnesota

Jim Brandenburg / Painted Turtle (Chrysemys picta) trio sunning on log, Minnesota

Cyril Ruoso / Red-eared slider (Trachemys scripta elegans) and Grass snake (Natrix natrix) basking on log. Seine et Marne, Ile-de-France. May.

George Sanker / Florida red-bellied cooter turtle (Pseudemys nelsoni) feeding on Water lily (Nymphaeaceae) flower. Everglades National Park, Florida, USA. March.