Tony Phelps / Cape cobra (Naja nivea) spreading its hood, retreats into hole, De Hoop Nature Reserve, Western Cape, South Africa, January.

Tony Phelps / Cape cobra (Naja nivea) emerging from a Cape gerbil (Gerbilliscus afra) burrow, hunting and smelling with its tongue, De Hoop Nature Reserve, Western Cape, South Africa, January.

Tony Phelps / Cape cobra (Naja nivea) hunting, chasing a Cape gerbil (Gerbilliscus afra), De Hoop Nature Reserve, Western Cape, South Africa, December.

Colin Varndell / Grass snake (Natrix natrix) Dorset, UK May

Matthew Maran / Grass snake (Natrix natrix) flicking tongue, Hampstead Heath, London, England, UK, August.

Luis Quinta / Grass snake (Natrix natrix) juvenile playing dead, Alvao, Portugal, April.

Luis Quinta / Grass snake (Natrix natrix) swimming in river, Olo, Alvao, Portugal, June.

Radomir Jakubowski / Marbled white butterfly (Melanargia galathea) on Horsetail (Equisetum), Herbitzheim near Saarbruecken, Saarland, Germany. Finalist in the Macro category and winner of the audience award in the Montpho...

Danny Green / Grass Snake (Natrix natrix) on lily pad, reflected in water. Leicestershire, UK, October.

Sven Zacek / Grass Snake (Natrix natrix) looking out from between wood slats. Estonia, Europe, June.

Robin Chittenden / Grass snake (Natrix natrix) swimming at surface, Dobrogea Tulcea, Danube Delta, Romania, May

Terry Whittaker / 2020VISION / Grass snake (Natrix natrix) swimming through water, Wicken Fen, Cambridgeshire, UK, June