the grass snake natrix natrix persa ringed or water snake lying on leaves water lily leaves and preys on frogs in garden pond

almost amphibians animal aquatic attack back biology brown camouflage closeup creature danger dangerous detail eurasian european exclusively eye fauna feeds frogs garden grass grasssnake green herpetology lake leaves lily lying natrix nature nontoxic nonvenomous orange outdoors pattern persa pond predator preys reptile reptilia reptilian ringed scale scaly serpent skin slither snake thermogenic water wild wilderness wildlife yellow zoology