Grass snake (natrix natrix) young hatchling in grass, oxfordshire, uk

snakes horizontals animals horizontal scaly reptilia wildlife grass hatchling cold predator reptiles natrix serpent english vertebrate carnivore predator reptile ectotherms british predatory developed country england carnivora uk squamata cold blooded carnivores marsh serpents ectothermic europe uk vertebrates britain snake aquatic blooded scaled serpentes limbless carnivorous nature united kingdom colubridae young zoology oxfordshire ophidia developed countries water european ectotherm reptile snake grass fauna animal