young european sand viper camouflage

aggressive ammodytes animal brown camouflage camouflaged closeup crawl creepy danger dangerous deadly elusiveness endangered europe european fauna grey hemolytic herpetology horn horned hornviper long nature neurotoxic nose nosed phobia poison poisonous predator protected rare reptile sand scary serpent slithering snake species toxic venom venomous viper vipera wavy wild wildlife