At a push, the blue-ringed octopus reaches just 20 cm in length, but they still harbor enough toxic chemicals to kill 26 adult humans. To add insult to injury, there is no antivenom, and, because the bite is so small, many people do not realize that they have been envenomated until the symptoms begin.
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.
So far scientists fully understand venom resistance in only four mammals - mongooses, honey badgers, hedgehogs and pigs - as well as several snakes. The golden poison frog is one of the most toxic animals on Earth, deadly to almost all animals except one.
The speed and venom resistance that mongooses have allows them to feed on the world's deadliest snakes. The mongoose is probably the most famous of all the venom-resistant animals on our list.
Mongooses, which have some resistance to mamba venom and are often quick enough to evade a bite, will sometimes harass or take a black mamba for prey, and may pursue them in trees. The similarly predatory honey badger also has some resistance to mamba venom.
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.
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.
We have noted at Walkabout Park that most kangaroos bitten by snakes are hand-raised kangaroos. We have seen a disproportionately larger number of hand-raised kangaroos bitten, relative to wild raised kangaroos.
While box jellyfish are found in warm coastal waters around the world, the lethal varieties are found primarily in the Indo-Pacific region and northern Australia. This includes the Australian box jellyfish (Chironex fleckeri), considered the most venomous marine animal.
Rather than non-IgE-mediated immediate hypersensitivity, patients receiving the second treatment of antivenom may develop IgE-mediated immediate hypersensitivity. Once happened, the antivenom treatment should be stopped promptly and anti-allergy treatment should be given immediately.
Sharks are known for their natural resistance to diseases and viruses despite their primitive immune systems. One article even reports that sharks are immune to all viruses!
If there's a family of snakes you don't want to anger, it would be the vipers. While these snakes don't always have the most deadly bites, they have the most painful ones. Van Wallach of the Harvard Museum of Comparative Zoology has had several viper bites; the worst one, he said, "came from an African bush viper.
Although elephants are huge, they are scared of the cobras and other snakes. When a cobra strikes an elephant, the cobra's fangs will be permanently locked into the elephant and will not be released. The elephant will die a few hours after the attack by a cobra.
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. That's all because of these things They're COVERED with tiny, venom-loaded darts, called nematocysts.
They cause all three major types of toxicity: coagulopathy (making a person's blood unable to clot), neurotoxicity (paralysis) and myotoxicity (muscle damage).
The Box Jellyfish is the most venomous animal in the world. Death can occur minutes after being stung. There are 51 species of box jellyfish, and four — Chironex fleckeri, Carukia barnesi, Malo kingi, and Chironex yamaguchii — are highly venomous!
Its inland taipan snakes, box jellyfish, Sydney funnel-web spiders, and stonefish all rank among the most venomous of their kind. The best illustration of Australia's deadly-animal problem may be the Elapidae snake family: a venomous group characterized by its short fangs and agile nature.
Interestingly, Australia only has 66 venomous species, whereas Mexico has 80 and Brazil has 79. Yet Australia has the ones with the most deadly venom. The box jellyfish, marbled cone snail, blue-ringed octopus and stonefish are in the top ten most venomous animals of the world, and all live in Australia.
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.
Norfolk Island is a very safe place to visit. There are no snakes on the island, and most of our spiders are harmless (even the big ones).
South Australia
Most of the venomous tend to be in this area. This is because it receives large amounts of sun but at the same time allows for enough cover for protection.
Another common plant remedy was the sap of the Native or Cherry Ballart (Exocarpas cupressiformis), used for snake bites.
Anti-venom is most often made from sheep's blood. The sheep swelled for about 2 days but the blood of the lamb destroyed the venom of the serpent.
The main predator to the king cobra is the mongoose because the mongoose is immune to its venom. However, mongooses rarely attack king cobras unless they have to. Venom from a king cobra can kill a human in around 45 minutes.