The toxin of one pufferfish can kill up to 30 adult men.

Nearly all pufferfish contain a toxin that is up to 1200 times stronger than cyanide.

Their outstandnig talent (which is common to all pufferfish), is the ability to ingest huge amount of water and air, which then increases the body size and allows them to appear as a freakish monster-like creature. The fast transformation scares away predators.

Pufferfish vary in size from the one inch pygmy puffer, to a two feet long freshwater giant puffer.

Toxin is not located in all parts of the pufferfish, and certain cultures prepare pufferfish as a delicacy. (e.g. In Japan, it is known as fugu.) Only specially trained chiefs can clean the fish correctly and prepare the toxin-free meal. Any mistake could result in the death of the customer.

Sharks are the only species immune to the pufferfish toxin. They can eat pufferfish without consequence.

The most elastic part of their body is skin on the stomach area. When pufferfish ingests water, skin on the stomach expands several times of the normal size of the fish.

The young fish are protected by the hard egg shell that cracks as soon as they are ready to hatch. After leaving the egg, young pufferfish swim toward the reef's community.

Although some baby pufferfish cannot be seen without a magnifying glass, their body shape closely resembles that of the adult.

The average lifespan of the pufferfish is around 10 years.

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