Brown Tree Snake

Because the brown tree snake’s fangs are located in the back of their mouths, they can rarely bite humans and inject venom unless the snake is very large in size.
Brown Tree Snake Scientific Classification
Scientific name
Boiga irregularis
Brown Tree Snake Physical Characteristics
Brown, Green
10 to 15 years
5 pounds
Brown Tree Snake Distribition

The brown tree snake is commonly described as the Brown cat snake, and they take place in Australia, Indonesia, and Papua New Guinea.

You can determine these serpents by their upright cat- like students, therefore the label. Furthermore, they have big heads and slim bodies and are energetic nighttime predators.

The brown tree snake is an intrusive species due to their damaging impacts on native animals, which might create the termination of lots of indigenous species. Scientist observed this habits when these serpents were initially presented to Guam in the 1940s.

Due to the fact that these serpents replicate throughout the year, their population numbers are experiencing lasting development. Furthermore, the brown tree snake is not a considerable hazard to human beings due to the fact that they are just gently poisonous.

Fantastic Truths Regarding Brown Tree Snakes

  • These serpents are understood for their poor moods and will consistently strike if collared or endangered.
  • Due to the fact that the brown tree snake’s fangs lie in the rear of their mouths, they can hardly ever attack human beings and infuse poison unless the snake is huge in dimension. That is why they are not viewed as harmful.
  • Their restricted diet contains little animals and birds, yet juveniles like to take advantage of little lizards.

Where to Discover Brown Tree Snakes

Brown tree snakes are belonging to Australia, Papua New Guinea, and the Solomon Islands. Nonetheless, in the 1950s, researchers uncovered them on the island of Guam. Furthermore, individuals reported seeing them in Texas, Oklahoma, and Hawaii, yet this has actually never ever been shown.

These serpents are extremely versatile, and their environments differ substantially over a variety of exotic and subtropical atmospheres on a number of islands.

In Guam, they are an intrusive species as their visibility is creating a serious environmental effect on the indigenous lizard and bird species on the island, that function as pollinators. As a result of this, there has actually been a considerable decrease in indigenous plant species in Guam.

Brown Tree Snake Scientific Name

The brown tree snake’s scientific name is Boiga irregularis, and they come from the order Squamata, which suggests “flaky or having ranges.” Squamata is the biggest order in the class Reptilia and consists of participants like:

  • Lizards
  • Serpents
  • Amphisbaenians or worm lizards

The Squamata order includes over 10,900 species. Furthermore, it is the 2nd- biggest order of living animals. Their most appreciable function is their bear sexy ranges or guards.

Brown tree snakes are participants of the Family Colubridae, which includes a few of one of the most typical snake species. individuals can determine them by the total lack of back arm or legs and their absence of teeth on the premaxilla. Furthermore, the majority of species in this Family have really couple of head ranges, a loosened face framework, and forward ranges as wide as their bodies.

Brown Tree Snake Population and Conservation Status

Brown tree snakes are an usual species, and their population numbers are secure. The IUCN REDlist details them as Least Concern, yet the precise variety of their population is unidentified.

Determining Brown Tree Snakes: Appearance and Summary

Brown tree snake head shot accentuates eyes
Brown tree snakes have big eyes that look like a cat’s.Matt Cornish/Shutterstock. com

The Brown tree snake is slim and dexterous. Their fangs being in the rear of their mouths; opisthoglyphous is the name of this weird attribute. However various other identifying attributes of their upright, cat- like students, their heads are bigger than their bodies, and these serpents are available in a wide array of shades, one of the most typical consisting of:

  • Brown
  • Eco-friendly
  • Brown with crossbands

Nonetheless, they likewise are available in red, yellow, or lotion shades.

This snake can mature to 4- 8 feet long. Nonetheless, a few of the brown tree snakes found on Guam gauged as long as 10 feet, similar to the Lancehead snake’s size. Furthermore, these serpents evaluate as much as 5 extra pounds by the time they are completely expanded.

Kinds Of Tree Snakes

There are a number of sorts of tree snakes, consisting of:

Australian Tree Snake ( Dendrelaphis punctulatus)

The Australian tree snake is commonly described as the environment-friendly tree snake, and they come from the Family Colubridae. These diurnal serpents have big eyes, slim bodies and are non- poisonous.

They are belonging to lots of areas in Australia, particularly along the north and eastern coasts, as much as Papua New Guinea. The Australian tree snake’s most distinct function is its slim body and tail, that make this snake extremely dexterous.

The top of their slim bodies differ in shade from gold yellow, olive environment-friendly, brilliant environment-friendly, black, and occasionally blue. Nonetheless, their stomaches and throats are normally light yellows with blue streaks on their flanks.

Their big eyes typically have gold irises with big, rounded students. Australian tree snakes take place in rain forests, timberlands, and metropolitan locations, and they take advantage of smaller sized animals like frogs and fish.

These serpents do not tighten their victim, neither are they poisonous. Rather, they rely upon their sharp collection of teeth to eat the victim and dive it down their esophagus.

Blunt- headed Tree Snake (Imantodes cenchoa)

The blunt- headed tree snake inhabits the woodlands of South America. These serpents have extremely wide heads when contrasted to various other tree snakes, and their eyes are big with cat- like upright students.

Heaven Tree Snake (Chrysopelea heaven)

Heaven tree snakes are commonly described as the paradise flying snake, and they are belonging to southeastern Asia. They come from the Genus Chrysopelea, which contains serpents that can move from the tops of trees by extending their bodies right into squashed bow- like strips utilizing their ribs.

They mainly take place in wet woodlands and can take a trip ranges of 32 feet while moving from the tops of trees. While executing this remarkable ability, their bodies continue to be reasonably secure, recommending some type of regulated trip.

Heaven tree snakes are gently poisonous, yet due to their back fangs, they are ruled out harmful to human beings. Rather than utilizing poison, they tighten their victim and like to prey on lizards and bats.

Poison: Exactly How Hazardous are Brown Tree Snakes?

The brown tree snake has rather a track record as one of one of the most hostile intrusive species. Nonetheless, their bite is not harmful to grownups yet can create a response in youngsters. Commonly, the brown tree snake responds by striking its target consistently when under hazard or collared.

These hostile serpents are just gently poisonous, and there are no taped fatalities arising from their bite. Nonetheless, youngsters have actually had responses to their poison, yet none were deadly.

Brown Tree Snake Actions

Very little is understood about the brown tree snakes’ habits. For instance, scientists are still not sure whether they live a singular life or in teams. Nonetheless, they have actually handled to determine that the brown tree snake males survive on their very own for the majority of their lives. Furthermore, they hibernate in deserted animal burrows throughout the winter season.

Brown Tree Snake Diet

These serpents commonly stay in trees, and they such as to take advantage of smaller sized animals, like:

  • Rats
  • Lizards
  • Skinks
  • Woodland birds
  • Geckos
  • Various other readily available animals

Brown Tree Snake Reproduction

These serpents maintain their population numbers constant due to the fact that they replicate all the time. Furthermore, they replicate by insemination, and female brown tree snakes can lay 3 to 12 clutches each year! These serpents lay their eggs in hollow logs, caverns, or rock gaps, and the clutches show up leathery in appearance.

The snakelets hatch out after 90 days of breeding, and the spawn step around 19 inches long. Furthermore, these snakelets take 3 to 4 years to get to sex-related maturation. The brown tree snake has no concerned impulses, and as soon as females have actually laid their eggs, they leave them to look after themselves.

These serpents have a fairly lengthy life expectancy of  10– 15 years in the wild.

Up Following


  1. Wikipedia, Available here:
  2. Invasive Species Info, Available here:
  3. Kidadl, Available here:,they%20are%20nocturnal%2C%20active%20predators.
  4. IUCN Redlist, Available here:

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