For my room. he could eat the rats that will probably make into the house. The blue phase of the White-Lipped Tree Viper. "Although they are green for the majority of their lives, they go through a bright blue phase which sheds off to the green.
Mexican West Coast Rattlesnake (Crotolus basiliscus) by Kai Rösler. A venomous pit viper species found in western Mexico. The specific name is derived from the Greek word for king, basiliskos, and alludes to this snake's large size and potent venom.