Fish
Stonefish
Synanceia verrucosa
High danger🌊 0–30 m📏 up to 40 cmIUCN status: Least concern
Considered the most venomous fish in the world, it blends perfectly with rocks and dead coral, making it nearly impossible to spot until it's too late.
🗺️ Geographic range
Reefs and coastal seafloors of the Indo-Pacific, from the Red Sea to Polynesia.
📊 Population
Not threatened and widespread across Indo-Pacific reefs (IUCN, least concern).
Habitat
- Pacific Ocean · Coral reef · Epipelagic zone · Permanent
- Red Sea · Coral reef · Epipelagic zone · Permanent
Behaviour
- Diet
- Small fish and shrimp, swallowed in a fraction of a second.
- Hunting
- Motionless, perfectly camouflaged, total ambush.
- Reproduction
- Spawns in open water.
Physiology
- Anatomy
- Warty skin mimicking an algae-covered rock.
- Adaptations
- Thirteen erectile venomous dorsal spines, triggered by simple pressure on the fish's back.
⚡ Its extraordinary abilities
- Near-perfect camouflage, blending in with an algae-covered rock
- One of the most powerful venoms known in any fish
🏆 Records
The most venomous fish known
Its sting can be fatal to humans without prompt treatment.
Source: Australian Museum
If you cross paths with this animal…
Risk: High: the sting is extremely painful and can be fatal without treatment.
Behaviour: Completely motionless, dangerous only if stepped on.
Advice: Always wear suitable footwear on Indo-Pacific coral and sandy seafloors.
💡 Did you know?
- Considered the most venomous fish in the world.
- Can survive several hours out of water, motionless, waiting for the tide.