Fish
Pufferfish (fugu)
Takifugu rubripes
As famous as a Japanese delicacy as it is feared as a poison, its preparation in the kitchen is reserved for specially certified chefs, since its toxin can be fatal if a mistake is made.
🗺️ Geographic range
Coastal waters of Japan, Korea and China, in the East China Sea and the northwestern Pacific.
📊 Population
No global population estimate available; commercially fished in Japan with no dedicated IUCN assessment.
Habitat
- Pacific Ocean · Coral reef · Epipelagic zone · Permanent
- East China Sea · Coral reef · Epipelagic zone · Permanent
Behaviour
- Diet
- Molluscs, crustaceans and small invertebrates, crushed with a horny beak.
- Hunting
- Actively but slowly hunts, compensated for by its defensive toxicity.
- Reproduction
- Spawns in shallow coastal areas, with eggs laid on the seafloor.
Physiology
- Anatomy
- A body able to inflate with water or air to double in size when threatened.
- Adaptations
- Tetrodotoxin concentrated in the liver, ovaries and skin, produced by symbiotic bacteria.
⚡ Its extraordinary abilities
- Can double in size within seconds by swallowing water
- A toxin so powerful that its culinary preparation requires specific certification in Japan
🏆 Records
A toxin with no known antidote in a fish consumed by humans
Fugu's tetrodotoxin remains fatal without treatment, despite centuries of regulated consumption in Japan.
If you cross paths with this animal…
Risk: High if poorly prepared and eaten: its toxin can be fatal, with no known antidote.
Behaviour: Not aggressive toward humans in the wild.
Advice: Never eat fugu prepared by an uncertified person.
💡 Did you know?
- In Japan, only chefs who have completed certified training are allowed to prepare it for consumption.
- Its toxin, tetrodotoxin, still has no known antidote.