# Paradise Flying Snake — Facts, Threats & Conservation

*Chrysopelea paradisi (Boie & Boie, 1827) — family Colubridae*

> The paradise flying snake (Chrysopelea paradisi) glides between trees by flattening its body into a concave aerofoil and undulating mid-air; it is Least Concern but loses connectivity as Sundaland forest converts for oil palm, pulpwood and mining.

**IUCN status:** Least Concern — glides between trees on forests fragmented by plantations and mining  ·  **WARN range:** Thailand, Malaysia, Singapore, Indonesia including Borneo and Sumatra

## Quick facts
| Fact | Value |
| --- | --- |
| Length | About 1–1.2 m |
| Glide | Concave body; active undulation |
| Pattern | Black with green spots |
| Venom | Mild; rear-fanged |
| IUCN status | Least Concern |
| Main threats | Oil palm, pulpwood, mining fragmentation |

## Scientific classification
- **Kingdom:** Animalia
- **Phylum:** Chordata
- **Class:** Reptilia
- **Order:** Squamata
- **Family:** Colubridae
- **Genus:** Chrysopelea
- **Species:** Chrysopelea paradisi

## Conservation status
- **Status:** Least Concern
- **Population:** No estimate; widespread in remaining forest
- **Trend:** Unknown; likely decreasing in converted regions
- **Assessed:** 2012
- **CITES:** Not listed
- Listing reflects range in surviving forest, not security amid rapid Sundaland conversion.

## Key facts: Paradise Flying Snake
- Paradise flying snakes glide by spreading ribs to flatten the body into a concave wing and undulating to steer.
- Launch is from height; glides of twenty metres or more connect trees without descending to the ground.
- They are mildly venomous colubrids — rear-fanged, dangerous mainly to small prey, not a major medical threat to humans.
- Canopy continuity matters: oil palm, pulpwood and mining fragmentation strand snakes that cannot cross large cleared gaps.
- Several Chrysopelea species glide; paradise tree snake is among the best documented biomechanically.
- Gliding evolved independently in snakes, squirrels and colugos — convergent solutions to forest gaps.

## How a snake becomes a wing
A paradise flying snake climbs using keeled scales and muscular loops, then selects a launch point with a drop beneath. At jump, it throws its body outward and spreads its ribs laterally, transforming a circular cross-section into a concave underside — a shape that generates lift at speed. Mid-air undulation — waves passing along the body — adjusts pitch and yaw.

High-speed video shows the snake is not falling flat; it is controlling trajectory well enough to land on a target trunk lower than the launch point but far horizontally. The biomechanics interest engineers as much as herpetologists: a flexible, undulating wing unlike any aircraft design.

## Ecology of a canopy colubrid
Chrysopelea paradisi hunts lizards and bats in the forest mid-storey. Rear fangs deliver mild venom to small prey; bites to humans are rare and usually minor. Activity is diurnal; the green-spotted pattern breaks outline against dappled leaves.

Life in the canopy minimises ground predation but requires connectivity. A snake that glides twenty metres cannot cross a plantation block half a kilometre wide. Remaining forest patches become islands; gene flow stops even when local density looks healthy.

## Plantations, mining and fragmented Sundaland
Lowland forest conversion for oil palm and pulpwood on Borneo and Sumatra removes the continuous mid-storey paradise flying snakes use. Mining and haul roads add linear gaps. The species is listed Least Concern because it remains widespread in surviving forest, but widespread is not secure when conversion rate exceeds reserve creation.

Southeast Asia's wildlife trade focuses on mammals and birds; gliding snakes appear occasionally in the pet trade but are not a primary driver. Habitat shape is the long-term pressure — the same pattern affecting colugos and hornbills at different canopy levels.

## Snakes that glide versus snakes that climb
WARN's snake type pages group colubrids, pythons and vipers for identification; flying snakes belong among colubrid oddities — harmless to most humans, specialised for a niche other snakes solve by staying in one tree or descending to ground. Gliding is the colubrid answer to gaps.

Understanding paradise flying snakes clarifies that 'flying' in biology usually means controlled glide, whether in snakes, colugos or frogs. Sundaland holds all three; plantation conversion tests all three the same way — by measuring gap width against glide distance.

## What WARN does
WARN publishes free, sourced species education for reptiles whose biology surprises searchers. Paradise flying snakes glide on concave bodies — a biomechanical marvel that still needs continuous forest not carved into oil palm, pulpwood and mining estates.

If this guide helps you understand wildlife and the pressures it faces, a gift to WARN supports habitat protection and free public education in our partner countries.

## Frequently asked questions: Paradise Flying Snake
### Can paradise flying snakes fly?
No. They glide by flattening the body and undulating mid-air. They cannot gain altitude freely but can steer to a landing tree.

### How far can they glide?
Typically twenty metres or more horizontally, from a launch height in the canopy. Gap width beyond that range is uncrossable.

### Are paradise flying snakes venomous?
Mildly — rear-fanged colubrids with venom effective on small prey. Bites to humans are uncommon and usually not serious.

### Where do they live?
Lowland and hill rainforest in Thailand, Malaysia, Singapore, Borneo and Sumatra — wherever contiguous canopy allows gliding.

### How do they flatten their bodies?
By spreading ribs laterally, creating a concave underside that acts as an aerofoil during launch and glide.

### What do paradise tree snakes eat?
Paradise Tree Snakes eat Colubrid — Rear-fanged; mildly venomous to small prey. The paradise flying snake (Chrysopelea paradisi) glides between trees by flattening its body into a concave aerofoil and undulating mid-air; it is Least Concern but loses connectivity as Sundaland forest converts for oil palm, pulpwood and mining.

### Are paradise tree snakes dangerous?
Paradise Tree Snakes are not generally dangerous to people. The paradise flying snake (Chrysopelea paradisi) glides between trees by flattening its body into a concave aerofoil and undulating mid-air; it is Least Concern but loses connectivity as Sundaland forest converts for oil palm, pulpwood and mining. Give wild individuals space and do not corner or handle them.

### How long do paradise tree snakes live?
A precise wild lifespan for paradise tree snakes is not firmly established in the sources cited on this guide. The paradise flying snake (Chrysopelea paradisi) glides between trees by flattening its body into a concave aerofoil and undulating mid-air; it is Least Concern but loses connectivity as Sundaland forest converts for oil palm, pulpwood and mining. Where longevity figures appear in the literature they vary by region, sex and whether animals are wild or captive.

### How big is a paradise tree snake?
A Paradise Tree Snake is about About 1–1.2 m. The paradise flying snake (Chrysopelea paradisi) glides between trees by flattening its body into a concave aerofoil and undulating mid-air; it is Least Concern but loses connectivity as Sundaland forest converts for oil palm, pulpwood and mining. Conservation status: Least Concern.

## Sources
- [IUCN Red List — Chrysopelea paradisi](https://www.iucnredlist.org/species/192567A2166433)
- [Nature — flying snake biomechanics](https://www.nature.com/articles/nature.2011.1033)

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Full guide: https://worldanimalrescuenetwork.org/wildlife-guides/paradise-flying-snake