In Ukraine and Russia, a particular dragon-like creature, Zmey Gorynych  has three heads, is green, walks on two back paws, has small front paws, and spits fire. According to one bylina, Zmey Gorynych was killed by Dobrynya Nikitich. Zmey Corynych is also associated with other evil creatures  such as  Baba Yaga and Koshey the Deathless. They are the main part of any Russian fairytale.  But brave and smart men like Ivan the Fool and others kill them and save their beautiful princess.