2. Rat snakes (Panterophis and Elaphe genus)
Interestingly, the Old and New World ret snakes are now considered to differ genetically more than previously thought, once belonging to the same genus Elaphe, these snakes were somewhat recently been divided into those belonging to Elaphe genus (referring to Old World rat snakes), and Pahterophis genus (the New world species). Apart from complicated classification, these snakes inhabit most of the Northern Hemisphere, from Japan, throughout Asia and Europe to the North American continent, therefore being found in many sizes and colors.
