Top Ten Most Poisonous Animals

Top Ten Most Poisonous Animals

Blue Ringed OctupusDeath Stalker Scorpion1

  1. Box Jellyfish
    Box JellyfishBox Jellyfish1
           The top prize for “The World Most Venomous Animal,” would go to the Box Jellyfish. It has caused at least 5,567 recorded deaths since 1954. Their venom is among the most deadly in the world. Its toxins attack the heart, nervous system and skin cells. And the worst part of it is that jelly box venom is so overpoweringly painful, that human victims go in shock, drown or die of heart failure before even reaching shore. Survivors experience pain weeks after the contact with box jellies. You have virtually no chance to survive the venomous sting, unless treated immediately. After a sting, vinegar should be applied for a minimum of 30 seconds. Vinegar has acetic acid, which disables the box jelly’s nematocysts that have not yet discharged into the bloodstream (though it will not alleviate the pain). Jelly box can be found in the waters around Asia and Australia.
    Links: Top Ten Jellyfish, Top Ten Australian Attractions,
  2. King Cobra
    King CobraKing Cobra1
           The King Cobra (Ophiophagus hannah) is the world’s longest venomous snake – growing up to 5.6 m (18.5 ft) in length. Ophiophagus, literally means “snake-eater” as it eats other snakes. One single bite of this deadly snake can easily kill a human. This snake is even capable of killing a full-grown Asian Elephant within 3 hours if the larger animal is bitten in a vulnerable area such as the trunk. It’s venom is not as toxic as other venomous snakes, but King Cobra is capable of injecting 5 times more venom than black mamba and can result in mortality up to 5 times faster than that of the black mamba. It is quite widespread, ranging across South and South-east Asia, living in dense highland forests.
    Links: Top Ten Snakes,
  3. Marbled Cone Snail
    © 2001 by Image Quest 3-D.  All Rights Reserved.
           This little beautiful looking Marbled Cone snail can be as deadly as any other animal on this list. One drop of its venom is so powerful that it can kill more than 20 humans. If you ever happen to be in warm salt water environment (where these snails are often found) and see it, don’t even think of picking it up. Of course, the true purpose of its venom is to catch its prey. Symptoms of a cone snail sting can start immediately or can be delayed in onset for days. It results in intense pain, swelling, numbness and tingling. Severe cases involve muscle paralysis, vision changes and breathing failure. There is no antivenom. However, only about 30 human deaths have been recorded from cone snail envenomation.
    Links: Top Ten Shells,
  4. Blue Ringed Octopus
    Blue Ringed OctupusBlue Ringed Octupus1Blue Ringed Octupus2
           The Blue-Ringed Octopus is very small, only the size of a golf ball, but its venom is so powerful that can kill a human. Actually it carries enough poison to kill 26 adult humans within minutes, and there is no antidote. They are currently recognized as one of the world’s most venomous animals. Its painless bite may seem harmless, but the deadly neurotoxins begin working immediately resulting in muscular weakness, numbness, followed by a cessation and breathing and ultimately death. They can be found in tide pools in the Pacific Ocean, from Japan to Australia.
    Links: Top Ten Octupus/Squid,
  5. Death Stalker Scorpion
    Death Stalker ScorpionDeath Stalker Scorpion1
            Contrary to popular belief, most scorpions are relatively harmless to humans as stings produce only local effects (pain, numbness or swelling). However, the Death Starker Scorpion is a highly dangerous species because its venom is a powerful cocktail of neurotoxins, which causes an intense and unbearable pain, then fever, followed by coma, convulsions, paralysis and death. Fortunately, while a sting from this scorpion is extremely painful, it would be unlikely to kill a healthy, adult human. Young children, the old, or infirm (with a heart condition) are at the biggest risk. Death stalker scorpions are spread throughout North Africa and the Middle East.
    Links: Top Ten Desert Animals,
  6. Stonefish and Lionfish
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           Stonefish may never win a beauty contest, but it would definitely win the top prize for being “The World Most Venomous Fish.” Its venom causes such a severe pain that the victims of its sting want the affected limb to be amputated. It is described as the worst pain known to man. It is accompanied with possible shock, paralysis, and tissue death. If not given medical attention within a couple of hours it can be fatal to humans. Stonefish stores its toxins in gruesome-looking spines that are designed to hurt would-be predators. Stonefish mostly live above the tropic of Capricorn, often found in the shallow tropical marine waters of the Pacific and Indian oceans, ranging from the Red Sea to the Queensland Great Barrier Reef. Pterois, commonly known as lionfish, is a genus of venomous marine fish found mostly in the Indo-Pacific. Pterois is characterized by red, white and black bands, showy pectoral fins and venomous spiky fin rays. Pterois are classified into nine different species, but Pterois radiata, Pterois volitans and Pterois miles are the most commonly studied. Pterois are popular aquarium fish and are readily utilized in the culinary world. In the mid 1990s, the species P. volitans and P. miles were unintentionally introduced into the Atlantic Ocean and have become an invasive species along the East Coast of the United States, the Mesoamerican Barrier Reef System, and the wider Caribbean. They are now also found in the Gulf of Mexico.
    Links: Top 100 Fish, Top Ten Best Dressed Animals, 
  7. The Brazilian Wandering Spider
    The Brazilian Wandering SpiderThe Brazilian Wandering Spider1The Brazilian Wandering Spider2
           This spider is believed to have the most potent neurotoxic venom of any living spider. Only 0.006 mg (0.00000021oz) is sufficient to kill a mouse. They are also so dangerous because of their wandering nature. They often hide during daytime in highly populated areas inside houses, clothes, boots and cars. Its venomous bite causes not only intense pain, the venom of the spider can also cause priapism, uncomfortable erections lasting for many hours that lead to impotence.
    Links: Top Ten Brazilian Attractions, Top Ten Spiders,
  8. Inland Taipan

           The prize for “The World’s Most Venomous Snake” goes to the Inland Taipan of Australia. Just a single bite from this snake contains enough venom to kill 100 human adults or an army of 250,000 mice. Its venom is at least 200 – 400 times more toxic than a common cobra. The Inland Taiwan’s extremely neurotoxic venom can kill an adult human in as little as 45 minutes. Fortunately this snake is very shy and there have been no documented human fatalities (all known bites were treated with antivenin).
    Links: Top Ten Snakes,
  9. Poison Dart Frog

           If you ever happen to be running through the rain forests somewhere in Central or South America, do not ever pick up beautiful and colorful frogs, it can be the Poison Dart Frog. This frog is probably the most poisonous animal on earth. The 2 inch long (5cm) golden poison dart frog has enough venom to kill 10 adult humans or 20,000 mice. Only 2 micrograms of this lethal toxin (the amount that fits on the head of a pin) is capable of killing a human or other large mammal. They are called “dart frogs” because indigenous Amerindians’ use of their toxic secretions to poison the tips of their blow-darts. Poison dart frogs keep their poison in their skins and will sicken or kill anybody who touches or eats it.
    Links: Top Ten Frogs/Toads,
  10. Puffer Fish
    Puffer FishPuffer Fish1Puffer Fish2
           Tetraodontidae is a family of primarily marine and estuarine fish of the Tetraodontiformes order. The family includes many familiar species, which are variously called pufferfish, puffers, balloonfish, blowfish, bubblefish, globefish, swellfish, toadfish, toadies, honey toads, sugar toads, and sea squab. They are morphologically similar to the closely related porcupinefish, which have large external spines (unlike the thinner, hidden spines of Tetraodontidae, which are only visible when the fish has puffed up). The scientific name refers to the four large teeth, fused into an upper and lower plate, which are used for crushing the shells of crustaceans and mollusks, their natural prey. Pufferfish are generally believed to be the second most poisonous vertebrates in the world, after the golden poison frog. Certain internal organs, such as liver, and sometimes the skin, are highly toxic to most animals when eaten; nevertheless, the meat of some species is considered a delicacy in Japan (as 河豚, pronounced as fugu), Korea (as bok), and China when prepared by chefs who know which part is safe to eat and in what quantity. The Tetraodontidae contain at least 120 species of puffers in 19 genera. They are most diverse in the tropics and relatively uncommon in the temperate zone and completely absent from cold waters. They are typically small to medium in size, although a few species can reach lengths of greater than 100 cm (39 in)
    Links: Top 100 Fish,
  11. Bonus: Black Mamba
    Black MambaFile:Dendroaspis polylepis head.jpg
           The black mamba (Dendroaspis polylepis), also called the common black mamba or black-mouthed mamba, is the longest venomous snake in Africa, averaging around 2.5 to 3.2 m (8.2 to 10 ft) in length, and sometimes growing to lengths of 4.45 m (14.6 ft). It is named for the black color of the inside of the mouth rather than the color of its scales which varies from dull yellowish-green to a gun-metal grey. It is the fastest snake in the world, capable of moving at 4.32 to 5.4 m per second (16–20 km/h, 10–12 mph). It has a reputation for being aggressive and highly venomous and is among the world’s most venomous land snakes based on LD50 on mice in a study
    Links: Top Ten Snakes, http://en.wikipedia.org/wiki/Black_mamba,
  12. Bonus: Sydney Funnel Web
    Sydney Funnel WebSydney Funnel Web1
    Atracinae, commonly known as Australian funnel-web spiders, is a subfamily of spiders in the funnel-web spider family Hexathelidae. Atracinae consists of three genera: Atrax, Hadronyche, and Illawarra. The subfamily includes species with medically significant venom, the most well-known of which is the Sydney funnel-web spider (Atrax robustus). The bite of Atrax robustus is potentially deadly, but there have been no fatalities since the introduction of modern first aid techniques and antivenom.
    Links: Top Ten Spiders, http://en.wikipedia.org/wiki/Sydney_funnelweb,
  13. Links: Top 100 Animals, Top Ten Most Deadly Animals, http://rkmalar.wordpress.com/2009/05/06/,