Rat snakes are non-venomous, medium-sized snakes that are native to North America, Europe, and Asia. They are an ideal pet for snake enthusiasts due to their docile nature and their ease of care. Rat snakes are great climbers and are often found in trees and shrubs. They come in a variety of colors and patterns, ranging from muted browns to bright yellows and oranges. Rat snakes are excellent escape artists, so secure enclosures are a must.