The World’s Most Venomous Fish

Which are the world’s most poisonous fish? Which fish are venomous enough to kill swimmers and divers? This article presents five of the world’s most venomous fish that make about 1200 species poisonous to man and other vertebrates.

Studies reveal that there are more poisonous fishes than snakes. About 1200 fish species are venomous and therefore dangerous to humans. More than 50,000 swimmers are bitten by poisonous fishes every year leading to serious injuries and fatalities. Which are the world’s most dangerous fishes? Which fishes are the most poisonous?

  1. The Lionfish – These are various species of fishes belonging to the family scorpaenidae. They are very colorful and have long and separated spines instead of fishes. They are widely referred to as scorpion fishes, or turkey fish.                                
  2. Pufferfish – Known as Fugu is Japanese and variously referred to as baloonfish, blowfish or bubble fish, the pufferfish are some of the most poisonous fishes today. They have four large teeth fused into an upper and lower plate, thin hidden spines and feed on crustaceans and mollusks.
  3. Stonefishes – They are highly venomous and dangerous to humans. They produce powerful neurotoxins that from their dorsal fin spines when threatened. They look like stones making it very easy for swimmers and divers to step upon them.
  4. Stargazers – They are a family of marine fish that have eyes on top of their heads. They are mainly found in shallow waters and often burry themselves in sand from where they leap to ambush any prey that may pass by. They have poisonous spines and can also produce electric shocks.
  5. Toadfish – They are ray finned fish that appear like toads. The males have a swim bladder that can ‘sing’ in order to attract potential mates. They do not have scales, have large heads and with eyes set higher.

These are the world’s most venomous fish. Fish that are poisonous enough to kill human swimmers and divers or those who feed on some of their body parts.

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20 Responses to “The World’s Most Venomous Fish”
  1. SharifaMcFarlane Says...

    On December 17, 2010 at 7:06 am

    I like fish-eating them that is. I guess these fish won’t be on my plate any time soon. They serve blowfish in Japan, but it is expensive.

  2. Brewed Coffee Says...

    On December 17, 2010 at 7:11 am

    Some natives in our country also eat the puffer fish despite the poison. I wouldn’t dare do that as I still want to live a long fruitful life :-) This is a very entertaining and informative article on poisonous fishes. I think the stone fish is so unappealing.

  3. Starpisces Says...

    On December 17, 2010 at 7:16 am

    very interesting post.
    Ya, just the look only, look dangerous enough.
    The best is, when not sure, don’t eat them, or don’t touch them.

  4. anjm Says...

    On December 17, 2010 at 7:31 am

    Wow awesome. Great write Jimmy

  5. Saxenadhi Says...

    On December 17, 2010 at 8:01 am

    interesting write, enjoyed reading it

  6. Raj the Tora Says...

    On December 17, 2010 at 9:03 am

    Loved the way you have compiled information Jimmy.

  7. Guy Hogan Says...

    On December 17, 2010 at 9:22 am

    They are as ugly as they are venomous.

  8. albert1jemi Says...

    On December 17, 2010 at 9:39 am

    lovely article

  9. The Soul Explorer Says...

    On December 17, 2010 at 9:54 am

    Thanks for the share!

  10. N. Sun Says...

    On December 17, 2010 at 10:28 am

    I’m glad we don’t live in the water.

  11. DR.VNS Says...

    On December 17, 2010 at 11:25 am

    Very nice

  12. jennifer eiffel01 Says...

    On December 17, 2010 at 1:19 pm

    Great article. Can you believe people in some Oriental countries eat pufferfish? I wrote an article a long time ago about how chefs who cook pufferfish have to undergo years of training and they have to prepare it in the exact way or they can poison someone. THe chef could spend 100 years studying, I’m not eating it. These chefs are the only ones who can cook it.

  13. Frederick Dewar Says...

    On December 17, 2010 at 3:56 pm

    I think these fishes ugliness would be enough to keep people away, let along their poison. lol

  14. yes me Says...

    On December 17, 2010 at 8:49 pm


  15. LCM Linda Says...

    On December 18, 2010 at 12:01 am

    Interesting topic. I think stonefishes may have the greatest opportunity to kill people. They really look like a rock.

  16. celydeepi Says...

    On December 18, 2010 at 3:38 am

    very interesting

  17. J M Lennox Says...

    On December 18, 2010 at 10:35 am

    A good article. Another good reminder for people not to underestimate the sea and it’s bounty.

  18. webseowriters Says...

    On December 19, 2010 at 9:59 am

    Stone fishes looks so strange

  19. butt Says...

    On April 29, 2012 at 5:27 pm


  20. butt butt Says...

    On April 29, 2012 at 5:29 pm

    my butt hurts
    from a puffer
    it bit me

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