Deadliest Sea Creatures

Deadliest Sea Creatures


Take a look at some of the deadliest sea creatures, featuring the great white shark, stonefish and the infamous box jellyfish.

You can see the full list below.



06. Puffer Fish

Puffer Fish

With no known antidote, the venom of a puffer fish can kill about 30 people, making it one of the most venomous sea creatures.

The fact that the puffer fish is considered a delicasy in Japan is somewhat strange, as just one slightly wrong cut during preparation can cause certain death of a consumer.

The puffer fish venom can lead to death within 17 minutes.


05. Stonefish


The deadly stonefish is one of the most venomous sea creatures with exceptional camouflage ability that makes it even more dangerous and deadly.

Packed with poisonous spikes on it's back, the stonefish can cause extreme pain, paralysis, tissue death and nerve damage.

If not treated properly within first few hours, the sting of a stonefish can cause death.


04. Saltwater Crocodile

Saltwater Crocodile

With te length of up to 21 feet (7 m), the saltwater crocodile is the largest specimen in the crocodile family.

Reaching weight of 3.500 pounds (1.590 kg), it is capable of eating creatures up to a size of a fully-grown water buffalo.


03. Blue Ringed Octopus

Blue Ringed Octopus

Althoug small in size, growing no more than 8 inches (20 cm), the blue ringed octopus is packed with enough venom to kill 30 humans within 30 minutes.

The 10,000 times stronger than cyanide venom can cause paralysis and death within a very short period of time.

No antivenom can be found for ste sting of a blue-ringed octopus, although it will not attack humans unless provoked, so it is best to simply stay away from it and keep your distance.


02. Great White Shark

Great White Shark

The infamous great white shark, a huge, ferocious predator widely known for it's hunting skills and can be located almost all over the world.

Although they are sometimes known for attacking humans, great whites are believed to bite humans because they mistake them for seals, which they preffer consuming.

You can also check out some amazing shark jumps or our list of biggest sharks ever caught by man.


01. Box Jellyfish

Box Jellyfish

The deadliest sea creature of all, box jellyfish kills more people than sharks, crocodiles and stonefish combined each year.

With the length that sometimes exceeds 15 ft (4.6 m), box jellyfish can kill up to 50 humans with the ammount of venom located in a single tentacle. The fact that box jellyfish usualy has up to 60 tentacles makes it one of the deadliest creatures in nature.

Thousands of stinging cells inject the deadly venom into the victims blood stream, causing complete cardiac and respiratory arrest in humans. It can lead to death within 3 minutes.

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