The Red-tailed green ratsnake, also known as the arboreal ratsnake and Red-tailed Racer, is a non-venomous snake.
They are often mistaken for the Green Pit Viper, which is a highly venomous snake. This is because they both have the same colouration on their bodies.
They are long and slender snakes and females are slightly larger than males.
The red-tailed green ratsnake is not aggressive, they usually crawl away when they are disturbed, but they can strike and bite instinctively.
They are classed as least concern by the IUCN, however they are protected in Thailand by the government.