macro shot of viper hidden in grass. vipera ursinii rakosiensis small viper living in meadows. an animal in a natural environment

adder animal beautiful brown closeup colorful danger dangerous deadly endangered endemic european fauna habitat head herpetology hungarian iucn macro meadow natural nature photography poison poisonous predator protected rakosiensis rare reptile reptilian romania scales scarce scary snake species threatened toxic ursinii venom venomous viper vipera viperidae viperinae wild wildlife zoology