Events & Festivals

The World’s Deadliest Sea Creatures

posted in Events & Festivals . posted by M Kepnes on July 26, 2008 . 41 Comments

There are a lot of activities to keep you laughing and having fun while in the ocean. It’s a safe and harmless place right? Not if you come across one of these deadly animals:

Saltwater Crocodile
Saltwater Crocodiles are extremely deadly, reaching a length of 17 feet and a weight of over 1,000 pounds. Lurking below the water, they wait for their meal and will eat anything. Without warning, they explode from the water, dragging their prey under to their death.


Puffer fish
Puffer fish contain a toxin that is deadly to humans. There is enough toxin in one Puffer fish to kill 30 people and there’s no known antidote. Ironically, these fish are considered a delicacy in Japan despite the fact one bad cut means certain death.

Box Jellyfish
Box Jellyfish are found in the waters around Australia and, like all jellyfish, they are transparent so you won’t see them coming. You have virtually no chance of surviving their poisonous sting, unless treated immediately. Most people don’t die from the sting but from the shock the pain causes.

Blue Ring Octopus
Despite its small size, the Blue Ring Octopus carries enough poison to kill over twenty people within minutes. It is one of the deadliest animals on this list. It will hunt small animals but will bite an attacker, even a human, if provoked or stepped on. The venom causes paralysis and respiratory arrest. There’s no known cure.

Stonefish
The Stonefish lives primarily above the Tropic of Capricorn and hides among rocks. Its dorsal area is lined with thirteen spines that release a venomous toxin that causes severe pain, paralysis, and tissue death. It’s fatal if medical attention is not given in the first few hours.

Great White Shark
The Great White Shark is the top of the ocean food chain. An exceptionally large creature, the Great White is found all over the world. It is one of the deadliest animals in the ocean and will eat anything. Movies like Jaws may have hyped up the threat but cross one of these sharks and it’s the last thing you’ll ever come across.

Sea Snakes
Sea snakes are venomous snakes found in warm waters. They are some of the deadliest snakes in the world and are usual docile unless provoked. The majority of sea snakes are highly venomous. Bites usually go unnoticed. If uncaught, bites can lead to cardiac arrest within twelve hours.

Cone Shell
The Cone Shell can be very attractive and making them tempting to pick up. They have teeth like small harpoons, which can penetrate clothing. If disturbed, they’ll bite and the venom can lead to death. Symptoms of pain, swelling and numbness are common.

Source: 1, 2, 3, 4, 5, 6, 7, 8

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41 Comments for "The World’s Deadliest Sea Creatures"

Person says on October 1st, 2008 at 2:36 am:

Ahh! I don’t want to go into the ocean now!

juno mcguff says on October 15th, 2008 at 8:11 pm:

i was doing homework on this right before i go to perth to swim

sophie Gauld says on October 18th, 2008 at 9:22 pm:

cool pics i hate the shark one

itmenotyou says on November 14th, 2008 at 9:52 pm:

everything is so cool ha

rajiv says on January 27th, 2009 at 6:35 am:

very gud information…swimmers and divers need to be cautious

seasucker says on February 13th, 2009 at 2:38 am:

cool, i love the stone head

Margaret heekin says on April 6th, 2009 at 2:57 pm:

Know the waters you are exploring and make sure to listen to divemaster. Never touch anything. Even if it does not contain toxic venom, it is likely very fragile and slow growing. Everything we do has dangers. It is up to us to know them, prepare for them and be good stewards of our environment.

Niamh says on May 30th, 2009 at 7:22 pm:

Dont Think I Want To Swimm With Those Any Time Soon :P :L

tasha says on June 17th, 2009 at 4:10 pm:

i think all these creatures are great i have swam with great whites and never been attacked :) ) x

maryck says on August 3rd, 2009 at 8:22 pm:

The bull shark is the number one deadly shark so i dont understand how the great white shark is on the list and the bull shark isnt. Jaws was actually inspired by the Bull shark. the piece of info under the great white is also wrong because most attacks result in loss of a limb, not death b.c the shark will not just eat ANYTHING.

Rhi-Rah says on August 16th, 2009 at 7:11 am:

i am reasearching the octopus but i don’t think i am ever going to pic up a snail againn! ouch

ray says on August 18th, 2009 at 1:43 am:

i still want to go to california for tech college and surf my butt off

Tyler says on December 8th, 2009 at 12:43 pm:

Why does the fish look like he is really a rock. and i thought that there wasn’ t and fish that had poison.

Tyler says on December 8th, 2009 at 12:44 pm:

I wouldent want to swim with one eigther. lol ;)

jay jon says on December 21st, 2009 at 10:03 pm:

not true great whites are 1st there have been more than three encounters between it and the saltwater croc all won by great white :)

darlene says on January 29th, 2010 at 5:29 am:

they are the reasons why I am,scared to swim or travel across th sea

darlene says on January 29th, 2010 at 5:32 am:

I don’t want to encounter anyone of them.

person says on February 17th, 2010 at 2:53 pm:

i want to get the all and rape them

asad says on April 9th, 2010 at 2:43 pm:

is this real world so dealy???

kangster says on April 18th, 2010 at 4:15 am:

That was some good pictures of creatures.DONT YOU THINK???????THAT was not all good to me but i managed to look at the pictures.Iwonder what other creatures lay in the deep sea

personnumber7 says on April 26th, 2010 at 3:10 am:

thank you so much..i had to write an essay on these and it helped alot ..im so scared of the sea now lol:)

LANA says on May 12th, 2010 at 4:09 am:

VERY GOOD INFO:) THAT IS AWESOME:)

regan says on May 18th, 2010 at 7:14 pm:

the sting ray should ne on there it did KILL the crocidile hunter

ethan says on July 17th, 2010 at 6:56 am:

Wow i surf and snorkel everyday in the summer and now i feel like the water itself wants to hurt me, but the advice was really helpfull on my school report

nimadanig says on August 29th, 2010 at 11:25 pm:

I LOVE JADE

brian says on September 3rd, 2010 at 5:42 pm:

these are some bad ass animals i want a sea snake i seen one before its awsome and i cought sharks before they aint all that like people say

sofia scoott says on September 16th, 2010 at 12:35 pm:

wow really intresting n good link :)

rgo says on September 22nd, 2010 at 11:45 am:

….had the weirdest thought….
‘thank god cockroaches aren’t poisonous’….
But awesome info…it was really interesting…
:D
The puffer fish looks so cute~

b.b says on October 19th, 2010 at 2:40 pm:

actually the wale shark is the most deadly shark…

b.b says on October 19th, 2010 at 2:44 pm:

and…… sting rays did not kidd the croc hunter…. he pulled out the stinger knowing that it wasz not the smartest thing to do, if he did not do that he would not have died. and he knowingly chose a life filled with dangers. i am not bashing him he is my hero but its also the truth.
and another thing is why would you be scared of the sea/ocean now? its the most beautiful place in the world. and if you do not intaganize the creatures they wont EAT YOU :)

Brandon says on October 29th, 2010 at 8:31 pm:

Its funny how the box jellyfish is the deadlest Creature on Earth it has a very soft body but yet the sting is so deadly and most people dont feel the sting so they dont survive it has so much venom you have to get help immedately are you wont survive !

Kerry J says on November 9th, 2010 at 1:42 am:

You hurt animals.
Animals, WILL HURT, “YOU!!!”
It’s called,
“REVENGE!” :D

PHILL says on November 10th, 2010 at 6:51 am:

how steve irwin was able to wrestle with massive crocs is AWESOME!!!!!!!!!!!!!!

(i’d probably run home as fast as i could! LOL:))

PHILL says on November 10th, 2010 at 6:52 am:

The Ocean . . . the REAL final frontier!!!

bethuel says on December 24th, 2010 at 12:12 pm:

The rock fish is even more urglier than a rock the name is not befitting maybe the urgly deadly fish would

Manu says on January 16th, 2011 at 4:15 am:

I really enjoyed reading this info and discovering more and more info and facts! :D overall i liked reading about the stonefish the most! :p :)

Niwa says on January 16th, 2011 at 4:21 am:

I <3ed it!:D
i loved the box jelly fish info and the great white shark :) :D

marly says on January 16th, 2011 at 4:27 am:

i really liked reading all of this great info and facts because im really interested in sea creatures and this website tell you alot of this wonderfull info! :D :) :D nut i think the winner for me would ahve to be the interesting cone fish that shoots out the dangerous venom and poison! :D
thankyou for posting and creating this website for marine biologist like me and with all of my research i thought that this website was good for me and my co-workers! :) :D !!!

Survived and surviver says on January 9th, 2012 at 12:10 am:

I got my arm ripped off by a great white shark and when I went back in the water I got stung by a jelly fish

Pradyumn Gupta says on February 5th, 2012 at 9:23 pm:

I am never going in an ocean anytime

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