Brown tree snake vs Smooth Green Snake
How does the Brown tree snake compare to the Smooth Green Snake? They are both members of the Colubridae family. Below we put their classification, habitat, diet, size, and conservation status side by side — and settle who would win in a fight.


Side-by-side comparison
- Scientific name
- Boiga irregularis
- Opheodrys vernalis
- Classification
- Reptile
- Reptile
- Family
- Colubridae
- Colubridae
- Habitat
- Forests, woodlands, and urban areas
- Moist meadows, grassy fields, open woodlands, and edges of forests
- Diet
- Carnivore
- Carnivore
- Conservation status
- Least Concern
- Least Concern
- Lifespan
- 10-15 years
- 5-8 years
- Weight
- 100-500 grams
- 8-14 grams
Brown tree snake vs Smooth Green Snake: who would win?

Brown tree snake
100-500 grams

Smooth Green Snake
8-14 grams
Brown tree snake wins high confidence
Brown tree snake is substantially heavier (100-500 grams vs 8-14 grams). In a physical confrontation that size and power advantage is usually decisive. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.
Similarities
- Both are reptiles.
- Both belong to the Colubridae family.
- Both have a carnivore diet.
- Both are listed as Least Concern.
Differences
- Habitat: Forests, woodlands, and urban areas vs Moist meadows, grassy fields, open woodlands, and edges of forests.
- Weight: 100-500 grams vs 8-14 grams.
Brown tree snake vs Smooth Green Snake: FAQ
Who would win in a fight, a Brown tree snake or a Smooth Green Snake?
Brown tree snake wins. Brown tree snake is substantially heavier (100-500 grams vs 8-14 grams). In a physical confrontation that size and power advantage is usually decisive. In the wild these two rarely (if ever) meet — this is a what-if based on the size and diet we have on record, not a prediction.
What is the difference between a Brown tree snake and a Smooth Green Snake?
Brown tree snake and Smooth Green Snake differ in several ways — habitat: forests, woodlands, and urban areas vs moist meadows, grassy fields, open woodlands, and edges of forests. weight: 100-500 grams vs 8-14 grams.
Do Brown tree snake and Smooth Green Snake live in the same habitat?
No — Brown tree snake lives in forests, woodlands, and urban areas, while Smooth Green Snake is found in moist meadows, grassy fields, open woodlands, and edges of forests.
What do Brown tree snake and Smooth Green Snake eat?
Both Brown tree snake and Smooth Green Snake have a carnivore diet.
Which is more endangered, the Brown tree snake or the Smooth Green Snake?
Brown tree snake is listed as Least Concern, while Smooth Green Snake is listed as Least Concern.
How big are Brown tree snake and Smooth Green Snake?
Brown tree snake weighs around 100-500 grams, while Smooth Green Snake weighs around 8-14 grams.

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Brown tree snake

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Smooth Green Snake







