Adder (Vipera berus)

Species information

Female adder giving birth to live young © Tony Phelps / naturepl.com	Newborn adder in membrane © Tony Phelps / naturepl.com	Immature female adder © Tony Phelps / naturepl.com
Adder amongst heather © John Cancalosi / naturepl.com	Adder coiled up © lauriecampbell.com	Adder © David Element
Female adder draped over tree stump © Stephen Dalton / www.nhpa.co.uk	Female adder © Geoff Simpson / naturepl.com	Female adder with two males © Joe Blossom / www.nhpa.co.uk
Male adder curled up on moss © E. A. Janes / www.nhpa.co.uk	Hemipenis of male adder © Steve Downer / www.ardea.com	Adder with mouth agape © Robin Redfern / www.osfimages.com
Adder next to sloughed skin © Brian Lightfoot / naturepl.com	Adder eating a sand lizard © Artur Tabor / naturepl.com	Close up of adder's head showing tongue © David Element