15 Of The Deadliest Snakes In The World That Proved To Be Fatal


Snakes can be anywhere, from the arid deserts of Australia to the tropical backyards of Florida residents. Those who are unfortunate enough to be bitten by snakes have described agonizing snake bite symptoms such as difficulty breathing, vomiting and nausea; numbness, and organ failure. It’s a relatively painful way of dying. And even though we have developed anti-venom which has been responsible for the survival of many; if not treated, bites from venomous snakes can still claim lives. From Russell’s Viper to the Black Mamba, these are some of the world’s most venomous Snakes.


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  1. 1 Belcher’s Sea Snake

    The most venemous snake in the world is the Belcher sea snake, specie that belongs to Elapidae's family. Its scientific name is Hydrophis Belcheri.

    The Belcher sea snake is the most poisonous sea specie since its venom is 100 times more deadly than the most poisonous terrestrial species. Still, it is not dangerous for humans as they hardly bite and when it does, it doesn’t release all their venom. This means that only one quarter of all bitten humans will be poisoned. However, with just a few milligrams of this toxin, it would be enough to kill over 100 men.

  2. 2 Black Mamba

    For these reasons, the black mamba is widely considered the world's deadliest snake. Black mambas live in the savannas and rocky hills of southern and eastern Africa. They are Africa's longest venomous snake, reaching up to 14 feet (4.5 meters) in length, although 8.2 feet (2.5 meters) is more the average.

    Black mambas are "fast, nervous, lethally venomous, and when threatened, highly aggressive," according to National Geographic magazine. In June, a New York woman was found dead in her suburban New York home - apparently after having been bitten by her own pet black mamba.

  3. 3 Russell's viper

    Russell's viper is native to Asia - found in places from India to Taiwan to Indonesia, says Britannica Encyclopedia. These snakes exist in open country, often in farmland - which makes contact with humans very likely.

    The bite of Vipera russelli can be fatal. In Sri Lanka, Burma and India it is responsible for the majority of snakebite incidents. It is a very dangerous snake. Large members of some species can easily deliver a lethal dose in humans. Victims will usually complain of pain at the bite site, and swelling may be evident. Substantial coagulopathy and acute renal failure may ensue. Unique to certain subspecies, there has been reported symptoms indicative of a neurotoxic and myotoxic venom including ptosis, dysarthrias, and generalized weakness.

  4. 4 Inland Taipan

    The Inland Taipan (Oxyuranus microlepidotus), is a venomous snake of the taipan genus commonly found in semi-arid regions of central east Australia.

    The inland taipan is not just a venomous snake it's considered the most venomous snake in the world by many people. When compared drop for drop and based on the median lethal dose (LD50) value in mice, its venom is by far the most toxic of any land snake or even sea snakes.

    Although extremely venomous and a very capable striker, contrary to the rather aggressive nature of its relative the coastal taipan, this serpent is usually quite a shy and reclusive snake species. With its placid disposition it prefers to escape from trouble, but it will defend itself and strike if mishandled, provoked or prevented from escaping.

  5. 5 Rattlesnake

    Rattlesnakes are large, venomous snakes that are found throughout North and South America. The greatest concentration of them is in the Southwestern United States and in Northern Mexico. Arizona is home to 13 species of rattler, more than any other state. The most distinctive feature that these species share is the rattle.

    Most people bitten by rattlesnakes have inadvertently stepped on them — so watch where you’re walking! Rattlesnake bites can be dangerous but are very rarely fatal to humans. With proper medical treatment, including antivenin, bites are usually not serious.

    Their venom is extremely potent. “The venom of most rattlesnake species is composed mainly of hemotoxins,” Viernum said. “Symptoms include temporary and/or permanent tissue and muscle damage, loss of an extremity depending on the location of the bite, internal bleeding, and extreme pain around the injection area.”

  6. 6 Eastern Brown Snake

    These snakes are diurnal, meaning they most active during the day, especially on warm sunny days, making them probably the most frequently encountered venomous snake in Australia.

    These are agile and fast-moving snakes, hunting by day and returning to its burrow at night. During the winter with colder temperatures they remain in their burrows for a period of 4 or 5 months. They are usually orange or brown in color, but there are many variations in color ranging from lighter to darker brown to almost black. The belly is usually a light cream, yellow or orange, and often speckled with orange or dark grey blotches.

    Depending on several factors a bite if left untreated as the potential to kill someone in as little as 30 to 45 minutes. Its venom is about 50 times more toxic that the king cobra venom.

  7. 7 Philippine Cobra

    Also, known as the Northern Philippine cobra, its Tagalog name is Ulupong, in Cebuano it is known as Agawason, in Carasaen in Ilocano and the scientific name is Naja philippinensis.The native home for this deadly Cobra is mainly , Catanduanes, Masbate and Mindoro, there has also been unconfirmed sightings in neighbouring islands. The Northern Philippine Cobra prefers to live close to fresh water such as lakes, rivers or other wet areas. Its diet consists of mice, small rats, frogs, lizards and other 

    The Philippine Cobra is regarded as the most deadly Cobra in the world and the third most dangerous snake in the world. What makes the Philippine Cobra so deadly is the fact it can spit its venom with deadly accuracy up to 3 metres (nearly 10 feet).

    The predators of the Philippine Cobra are humans, mongoose birds and its relative the King Cobra.

  8. 8 Death Adder

    The highly venomous death adder (acanthophis genus) has also the fastest strike of any snake, so we are in for a nasty surprise.

    It is more scarce in the Northern Territory, Western Australia and the west parts of South Australia. It is also native to Papua New Guinea. Common death adders are found in forests, woodlands, grasslands and heaths of the eastern coast ofAustralia.

    As with other venomous snakes causing snakebite in humans, death adders have complex venoms with many components. Only the most important clinically are mentioned here. Overall death adder venom is highly potent, though slightly less potent than common brown snake venom, tiger snake venom and taipan venom.

  9. 9 Blue Krait

    Bungarus candidus, commonly known as the Malayan krait or blue krait, is a highly venomous species of snake. The blue krait is a member of the elapid family.

    The blue krait that we often meet in Thailand is considered one of the most dangerous snakes in the world, since more than fifty percent of all bites from it result in death—even with the administration of antivenin (anti-venom).

    In mice, the IV for this species is 0.1 mg/kg. It has caused an untreated mortality rate of 60-70% on humans.

  10. 10 Eyelash Viper

    Bothriechis schlegelii, the eyelash viper, is a venomous pit viper species found in Central and South America. Small and arboreal, this species is characterized by a wide array of color variations.

    The eyelash viper is a nocturnal, arboreal animal. ... With small animals the venomcan kill within minutes, but larger animals rarely succumb unless the viper manages to inject a large amount of venom into the victim. Because the viper is arboreal, most bites to humans are to hands, fingers and occasionally to the face.

    This is a typical ambush predator, the eyelash viper waits patiently for unsuspecting prey to wander by. Sometimes it is known to select a specific ambush site and return to it every year in time for the spring migration of birds.

  11. 11 Indian Cobra

    The Indian cobra (Naja naja) is a highly venomous snake species of the genus Naja of the family Elapidae found in the Indian subcontinent. The Indian cobra also known as the spectacled cobra, Asian cobra, or binocellate cobra found in the India, Pakistan, Bangladesh, Sri Lanka, Nepal, and Bhutan.

    The Indian cobra is a venomous snake occupying large areas of the Middle East, from India through China and Indonesia. Indian natives call it nag, naga, pambo, gokhura and nagara havu. The Indian cobra normally grows to a length of around one meter. It lives anywhere it can find suitable shelter, even in areas occupied by humans. Cobras do not normally attack humans when not threatened, except during mating season. When meeting a cobra, the best strategy is to remain calm, since cobras react aggressively to rapid movements. The cobra's poison, similarly to that of other rat snakes (genus Elaphe) has primarily neurotoxic effects.

    The Indian cobra is one of the most dangerous snakes in India, killing around 10,000 people each year.

  12. 12 Tiger Snake

    Tiger snakes are highly venomous and are found in southern and eastern, but not inland mainland Australia, and also on southern offshore islands, including Tasmania. As with other venomous snakes causing snakebite in humans, tiger snakes have complex venoms with many components.

    Many receive antivenom; on average two per yearwill prove fatal. About half the deaths are due to bites from the brown snake; the rest mostly from tiger snake, taipan and death adder. While some deaths occur soon after the bite, it is uncommon to die within four hours of a snake bite.

    The snake's large size, often aggressive defence and toxic venom make it extremely dangerous to humans. Although generally shy and preferring escape over conflict, a cornered tiger snake will put on an impressive threat display by holding its forebody in a tense, loose curve with the head slightly raised and pointed at the offender. It will hiss loudly as it inflates and deflates its body, and if provoked further will lash out and bite forcefully. The venom of the tiger snake is strongly neurotoxic and coagulant, and anyone suspected of being bitten should seek medical attention immediately.

  13. 13 Saharan horned viper

    The Saharan horned viper, also known as the desert horned viper, is the most familiar snake in North Africa and the Middle East, says a University of Oxford researcher.

    One of the most distinctive characteristics of this species is the presence of supraorbital "horns", one over each eye. However, these may be reduced in size or absent. The eyes are prominent and set on the sides of the head. There is significant sexual dimorphism, with males having larger heads and larger eyes than females. 

    C. cerastes venom is not very toxic, although it is reported to be similar in action to Echis venom. Envenomation usually causes swelling, haemorrhage, necrosis, nausea, vomiting, and haematuria.

  14. 14 Coral Snake

    The Arizona coral snake, clearly a separate species and genus, is found in central and southern Arizona, extreme southwestern New Mexico and southward to Sinaloa in western Mexico.

    When confronted by humans, coral snakes will almost always attempt to flee, and bite only as a last resort. In addition, coral snakes have short fangs (proteroglyph dentition) that cannot penetrate thick leather clothing. 

    Coral snakes have a powerful neurotoxin that paralyzes the breathing muscles; mechanical or artificial respiration, along with large doses of antivenom, are often required to save a victim's life. There is usually only mild pain associated with a bite, but respiratory failure can occur within hours.

  15. 15 Eastern Green Mamba

    The Eastern green mamba (Dendroaspis angusticeps), is a large mostly arboreal and highly venomous snake found in the coastal regions of southern East Africa

    Like other species of mamba, the eastern green mamba is highly venomous; a single bite can contain enough venom to kill several people. The venom acts on the nerves, heart, and muscles, and spreads quickly through tissue. 

    Bites rapidly progress to life-threatening symptoms characteristic of mamba bites, which include swelling of the bite area, dizziness, nausea, difficulty breathing and swallowing, irregular heartbeat, convulsions, and eventual respiratory paralysis.

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