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Conus geographus. It stings with a harpoon, emitting deadly conotoxins. Believed to be responsible for up to 30 human deaths worldwide, but also useful in medicine.


Conus geographus Linnaeus, 1758 Geography cone, 129mm Conus geographus is the largest of the fish-eating cone shells and is also the most dangerous. Its venom has adapted to become powerful enough to quickly stun or kill a prey fish. It wouldn't do the cone much good if the fish were stung and escaped, only to die somewhere else. In addition to having highly virulent venom, it also has an aggressive attitude.

CA 15302 a Toxic shells (Terebra consobrina, Conus geographus, Conus textile)

หอยเต้าปูนลายแผนที่หรือหอยเต้าปูนลายผ้า (Conus geographus)

This Snail Makes A Venom So Toxic, It Disables Fish Swimming Near It

Cone snails are known for their venom. Upwards of fifteen people have died of it. One snail, Conus geographus, doesn't even have to sting to kill its prey. And scientists have found out why.

One animal is more venomous than any other

A geography cone snail (Conus geographus) The human lethal dose for its venom has been estimated at just 0.029-0.038mg for every kg of body mass. 65% of human stinging cases are fatal without medical attention – although only 36 such fatalities have been recorded since 1670. (Credit: Jeff Rotman/NPL)