No, the fastest-acting venom on Earth belongs to the Australian Box Jellyfish or sea wasp. It's not the most potent venom out there. But encounter one of these guys and you'll be dead in 15 minutes.
Inland taipan (Oxyuranus microlepidotus)
The most venomous snake in the world is considered to be the inland taipan, endemic to central-eastern Australia. It has by far the highest median lethal dose of venom of any snake, and indeed probably any animal, making it the most toxic.
So far scientists fully understand venom resistance in only four mammals - mongooses, honey badgers, hedgehogs and pigs - as well as several snakes.
No Antidote
Yet there is still no remedy against two of the most venomous animals of the world: the blue-ringed octopus and the blowfish.
Platypus venom can paralyze small animals (such as a rival male) and, although it is not quite potent enough to do the same to a human, an attack is surprisingly painful and incapacitating. The wound and surrounding area rapidly swells as blood flow spikes.
Their resistance is to the a-neurotoxin in snake venom, specifically. Domestic pigs have a genetic mutation in their cell receptors that prevents binding of the a-neurotoxin, rendering the venom useless. The resistance doesn't occur in most pigs until they are adults, so small pigs are still vulnerable.
Mosquitos are by far the deadliest creature in the world when it comes to annual human deaths, causing around one million deaths per year, compared to 100,000 deaths from snakes and 250 from lions. Perhaps surpringly, dogs are the third deadliest animal to humans.
But the blue coral snake (Calliophis bivirgata) is different. These beautifully coloured snakes from South East Asia and have a venom that's so powerful, it can trigger all of the victim's nerves to fire at once, instantly trigging full body spasms, paralysis, and a quick, horrifying death.
In the mammalian realm, hedgehogs, skunks, ground squirrels, and pigs have shown resistance to venom. Some scientists even believe the lowly opossum, which wields a venom-neutralizing peptide in its blood, may hold the key to developing a universal antivenom.
But, aside from young foal, adult horses do not typically die from the toxic venom from a snake bite. Your horse's Veterinarian will be more concerned with asphyxiation due to swelling, infection and secondary disease that can result from a bite.
Symptoms of a Copperhead Bite in Dogs
As dogs are not immune to Copperhead venom, they will start displaying symptoms that will give you an indication that they have been bitten by a venomous snake. The severity of the symptoms depends on a few factors. These include the size of your dog and the location of the bite.
Anti-Venom (Symbiote) (Earth-616)
The researchers found adaptations in Komodo dragon genes involved in coagulation that make these lizards immune from the venom anti-coagulant, protecting them from bleeding to death when attacked by another of their own species.
Australian Box Jellyfish
The box jellyfish is the world's most venomous animal with four species — Chironex fleckeri, Carukia barnesi, Malo kingi, and Chironex yamaguchii — considered highly venomous. The Chironex fleckeri, also known as the Australian box jellyfish is considered the most venomous animal in the world.
The hedgehog (Erinaceidae), the mongoose (Herpestidae), the honey badger (Mellivora capensis) and the opossum are known to be immune to a dose of snake venom.
1. Bullet ant. Last but not least, we have the most painful sting of all — the bullet ant sting. Schmidt describes the pain as “pure, intense, brilliant pain.
"Most venomous snakes are believed to have some immunity to their own venom, but there are a few cases of fatal self envenomation. In the very rare chance a venomous snakes does bite itself and dies, other factors such as disease or stress are the major reasons for a fatality."
Just like humans have special cells in their bodies, called immune cells, that fight diseases that get into the blood system, snakes have special immune cells that can fight their own venom and protect them from it if it gets into their own blood.
Mongooses have mutated cells that block the mambas' neurotoxins from entering their bloodstream. This makes them capable of surviving the venomous snake's deadly bite. (See how a mongoose fends off a lion.)
The black mamba, for example, injects up to 12 times the lethal dose for humans in each bite and may bite as many as 12 times in a single attack. This mamba has the fastest-acting venom of any snake, but humans are much larger than its usual prey so it still takes 20 minutes for you to die.
A brown recluse's venom can destroy blood vessels, tissue, and nerves. As a result, the skin tissue can die, a phenomenon called skin necrosis.
The saw-scaled viper, Echis carinatus, is considered the deadliest snake in the world, according to Britannica. This type of snake is said to be responsible for "more human deaths than all other snake species combined." The venom of the saw-scaled viper is not as lethal as other snakes, but it is far more aggressive.
2. Mosquito. Clocking in at just three millimeters at their smallest, the common mosquito, even tinier than the tsetse fly, ranks as the second most dangerous animal in the world.