Green Tree Snake
Leptophis ahaetulla (Linnaeus, 1758)
Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Reptilia
Order: Squamata
Suborder: Serpentes
Family: Colubridae
Subfamily: Colubrinae
Genus: Leptophis
Species: L. ahaetulla
Overview
Other names: Green Tree Snake, Green Parrot Snake
Length: Up to 172cm
Color: Bright green scales, typically yellow bellied although they might sometimes be green or white.
Habitat: Found in rainforests but can live almost anywhere there is warm brush and shrubs.
Feeding: Mostly frogs, but will also eat lizards, small birds and eggs. Kills by constriction so that the prey eventually suffocates then the green tree snake will swallow its meal whole. They hunt during the day when their main food source (frogs) are in their resting places, the snake moves about until it uncovers a resting frog and then attacks.
Defensive strategies: Can you tell any differences between these two snakes?
Probably not, but there is one huge difference
When threatened, the Green Parrot Snake will produce a loud hiss, flatten its neck, and widely open its mouth. This display not only looks threatening but is also an example of Batesian-Mimicry. When the green tree snake performs these defensive actions, it mimics the Eye Lash Pit Viper and the Forest Pit Viper, both of which are venomous and are found in the same tropical habitat. Snake 1 is the venomous forest pit viper while snake 2 is the non-venomous green tree snake. This is a great defensive strategy as its predators may mistake him for a venomous snake and flee.
Personal Interest: I have always been fascinated by snakes and was curious as to how non-venomous snakes stand a chance with so many predators. The Batesian Mimicry defense of the Green Tree Snake was exciting to learn about and made it a fun research critter.
References
Damien Campbell, eHow Contributor. (2013) Information on the Green Parrot Snake. Retrieved May 30, 2013 from URL:
Laura A. Baboolal (2011) The Online Guide to the Animals of Trinidad and Tobago. Retrieved May 30, 2013 from URL: http://sta.uwi.edu/fst/lifesciences/documents/Leptophis_ahaetulla.pdf
Whaldener Endo (2008) Green Tree Snake Photo. Retrieved May 30, 2013 from URL: http://www.betterphoto.com/gallery/dynogalldetail.asp?photoid=6401286
Paul Robert Lloyd (2013) The Rufford Foundation. Forest Pit Viper Photo. Website by . Retrieved May 30, 2013 from URL: http://www.rufford.org/rsg/projects/thy_neang