Chien Lee / Red-tailed Green Ratsnake (Gonyosoma oxycephalum) coiled in branches, Bau, Fairy Cave, Sarawak, Borneo, Malaysia

Chien Lee / Red-tailed Green Ratsnake (Gonyosoma oxycephalum), Jakarta, Java, Indonesia

Tim Fitzharris / Red-tailed Green Ratsnake (Gonyosoma oxycephalum) in tree, Costa Rica

Juan Carlos Munoz / Red tailed rat snake (Gonyosoma oxycephalum) Danum Valley Forest Reserve, Sabah, Borneo, Malaysia

Nick Garbutt / Red tailed Rat snake (Gonyosoma oxycephalum), on rocks, watched by Nick Garbutt. Gomantong Cave, Sabah, Borneo.

Michael D. Kern / Red tailed green rat snake {Gonyosoma oxycephalum} captive, South eastern Asia

Michael D. Kern / Red tailed green rat snake {Gonyosoma oxycephalum} captive, South eastern Asia

Robert Valentic / Red tailed rat snake {Gonyosoma oxycephala} captive

Nick Garbutt / Red tailed rat snake {Gonyosoma oxycephalum} Sukau, Borneo

Ch'ien Lee / Red-tailed Green Ratsnake (Gonyosoma oxycephalum), Kinabatangan Wildlife Sanctuary, Sabah, Borneo, Malaysia

Robert Valentic / Red-tailed racer (Gonyosoma oxycephalum) Phuket Island, Thailand, Controlled conditions.