It is poisonous. It has a thick, short body with a zigzag pattern on its back. The color can be gray, brown, black. When faced with danger, they first try to crawl away, but if cornered, they can bite. Viper venom is considered dangerous, but it is rarely fatal to humans. It causes pain, swelling, weakness, nausea, and dizziness.
These snakes can be poisonous or non-poisonous. The non-poisonous yellow-bellied snake is often found in Russia. Snakes usually reach a length of 2 m and their skin color can vary from yellowish brown to gray/green. When meeting a person, a snake can behave aggressively, but usually their bites are not dangerous, as they are most often non-poisonous.
Source: Ferra

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