Edwin Giesbers / Madagascar ground boa (Acrantophis madagascariensis) Berenty Reserve, Madagascar

Mark Carwardine / Madagascar boa {Acrantophis madagascariensis} coiled around branch at night, Aye-aye Island, north-east Madagascar

Loic Poidevin / Madagascar ground boa (Acrantophis madagascariensis) head portrait, Madagascar.

Edwin Giesbers / Madagascar ground boa (Acrantophis madagascariensis) Berenty Reserve, Madagascar

Edwin Giesbers / Madagascar ground boa (Acrantophis madagascariensis) portrait, Berenty Reserve, Madagascar

Edwin Giesbers / Madagascar ground boa (Acrantophis madagascariensis) portrait, Berenty Reserve, Madagascar

Nick Garbutt / Madagascar ground boa {Acrantophis madagascariensis} on forest floor, Lokobe NR, Nosybe, NW Madagascar

Nick Garbutt / Madagascar boa constrictor {Acrantophis madagascariensis} Lokobe Reserve, North West Madagascar

Rod Williams / Female Malagasy boa {Sanzinia madagascariensis} captive, from Madagascar

Michael & Patricia Fogden / Madagascar Ground Boa (Acrantophis dumerili), Madagascar

Nick Garbutt / Madagascar boa constrictor {Acrantophis madagascariensis} feeds on {Oplurus sp} lizard Kirindy, W Madagascar

Nick Garbutt / Madagascar boa constrictor {Acantophis madagascariensis} Lokobe Res, Madagascar