Barry Mansell / Pine woods snake (Rhadinaea flavilata) North Florida, USA

Pete Oxford / Black pine snake (Pituophis melanoleucus lodingi), endangered species, Southern USA, captive

Pete Oxford / Southern Pinesnake (Pituophis melanoleucus mugitus) in pine needles, native to the southeastern United States

Pete Oxford / Twin-spotted Rattlesnake (Crotalus pricei) amid pine needles, native to Mexico and the United States

Barry Mansell / Short-tailed Snake (Stilosoma extenuatum) captive, from Pine Oak Habitat, Ocala National Forest, Central Florida, USA

Barry Mansell / Short-tailed Snake (Stilosoma extenuatum) from Pine Oak Habitat, Ocala National Forest, Central Florida, USA

Barry Mansell / Short-tailed Snake (Stilosoma extenuatum) from Pine Oak Habitat, Ocala National Forest, Central Florida, USA

Barry Mansell / Short-tailed Snake (Stilosoma extenuatum) from Pine Oak Habitat, Ocala National Forest, Central Florida, USA

Claudio Contreras / Mexican pine snake (Pituophis deppei) coiled on rock, Huichol Sierra, western Mexico, July

Michael D. Kern / Bull Snake {Pituophis melanoleucus sayi} hybino (albino x hypo) colouration, captive, from Central USA

Tony Phelps / Pine gopher snake {Pituophis melanoleucus} captive, from North America

Barry Mansell / Albino Southern pinesnake (Pituophis melanoleucus mugitus) Florida, USA

Mary McDonald / Pine gopher snake (Pituophis melanoleucus) California, USA

Doug Wechsler / Northern water snake {Nerodia sipedon} Pine Barrens, New Jersey, USA

Doug Wechsler / Smooth green snake climbing {Opheodrys vernalis} Pine Barrens, New Jersey, USA

John Cancalosi / Black Pine Snake {Pituophis melanoleucus lodingi} portrait in hollow of tree, Mississippi, USA.

John Cancalosi / Black Pine Snake {Pituophis melanoleucus lodingi} in hollow of tree, Mississippi, USA.

Todd Pusser / Pine gopher snake {Pituophis melanoleucus} coiled in grass, North Carolina, USA

Todd Pusser / Pine gopher snake {Pituophis melanoleucus} hatchling held in hand, NOrth Carolina, USA.

Todd Pusser / Biologist Jeff Beane radio tracking a Pine gopher snake {Pituophis melanoleucus} North Carolina, USA.

Barry Mansell / Southern pine snake, juvenile {Pituophis melanoleucus mugitus} Florida, USA.

Patricio Robles Gil / Green Rat Snake (Senticolis triaspis) camouflaged among leaves on the forest floor, East Sierra Madre in the pine oak mountains of Tamaulipas, Mexico

Pete Oxford / Louisiana Pinesnake (Pituophis ruthveni), native to the southeastern United States

Pete Oxford / Black Pinesnake (Pituophis melanoleucus lodingi) among pine needles and pine cone, native to the southern United States

Doug Wechsler / Pine gopher snake juvenile {Pituophis melanoleucus} New Jersey USA

Barry Mansell / Pine woods snake (Yellow lip snake) {Rhadinaea flavilata} C Florida USA