1. King cobra
   Golden lancehead
2. Mamushi
   Gaboon viper

The golden lancehead is a venomous pit viper which is endemic to an island off the coast of Brazil called “Snake Island.” Its name is derived from the light yellowish-brown color of its underside and the shape of its head.

1. Copperhead
   Cottonmouth
2. Fer-de-lance
   Coastal taipan

The fer-de-lance is a venomous viper which can be found in parts of Mexico and South America. It is responsible for most of the snake bites in that region, and it is advised to avoid them if you come across them. The venom of the snake is known to cause hypotension and acute renal failure.

1. Philippine cobra
   Horned viper
2. Banded krait
   Tiger snake

The Philippine cobra is a species of venomous spitting cobras which can be found in the northern regions of the Philippines. Its potent venom is a postsynaptic neurotoxin and can cause respiratory paralysis, which can lead to death.

1. Indian cobra
   Eastern brown snake
2. Many-banded krait
   Timber rattlesnake

The timber rattlesnake, also referred to as the canebrake rattlesnake, is a pit viper which is found in eastern states of North America. This snake is the state reptile of West Virginia, and is one of the most dangerous reptiles because of its long fangs and high venom yield.

1. Inland taipan
   Western diamondback rattlesnake
2. Caspian cobra
   Boomslang

The Caspian cobra, also called the Russian cobra, is a species of cobras which can be found in the Trans Caspian region. It is one of the most venomous species of cobras in the world, and it is able to cause paralysis and respiratory failure if antivenom is not administered in a timely fashion.

1. Belcher's sea snake
   Eastern diamondback rattlesnake
2. Common krait
   Monocled cobra

Belcher’s sea snake, which is also known as the faint-banded sea snake, is a venomous species of snakes which are found in the Indian Ocean. Able to hold their breath approximately 8 hours, these snakes are said to be docile, only envenoming those that it bites on rare occasions.

1. Western brown snake
   Eyelash viper
2. Common death adder
   Egyptian cobra

The western brown snake, also known by the name gwardar, is a species of snakes which are endemic to the continent of Australia. This fast-moving snake does not have the most potent venom, but because of the quantity of venom delivered when biting, some may be fatal.

1. Red-bellied black snake
   Eyelash viper
2. Golden lancehead
   Black-necked spitting cobra

Found in Central and South America, the eyelash viper is a venomous pit viper which comes in a variety of colors. These tree-dwelling snakes are known for the superciliary scales above their eyes, which they are named for. A bite left untreated can result in loss of limbs and even death.

1. Eastern green mamba
   Black mamba
2. Chinese cobra
   Saw-scaled viper

The saw-scaled viper, also referred to as the carpet viper, is a venomous viper which can be found in different regions of Africa and Asia. In order to ward off predators, they make a “sizzling” warning sound, but when they do bite, they can cause death.

1. Sidewinder
   Cape cobra
2. Eastern coral snake
   Yellow-bellied sea snake

Found in regions of the southeast United States, the eastern diamondback rattlesnake is the largest rattlesnake which was given its name because of its diamond-shaped pattern. It is one of the most dangerous in North America, and its bite is able to cause hemorrhagic symptoms.

1. Malayan krait
   Copperhead snake
2. Pygmy rattlesnake
   Garter snake

Found only in parts of Eastern America, the copperhead snake is a species of venomous snakes which are non-aggressive, but they have been known to bite people and animals when they are agitated, usually with a small amount of venom.

1. Yellow-lipped sea krait
   Kingsnake
2. Milk snake
   Common death adder

The common death adder is one of the many species of death adders, this one being native to Australia where it has been called one of the most venomous land snakes. This snake’s venom contains a highly potent neurotoxin which can cause paralysis and death in as quickly as six hours post-bite.

1. Black rat snake
   Corn cobra
2. Forest cobra
   Cottonmouth

The forest cobra, also called the black and white-lipped cobra, is a species of venomous snakes which can be found throughout western and central Africa. It is one of the largest of the true cobras, and its venom is known to contain a neurotoxin which can cause neurological and respiratory symptoms.

1. Western green mamba
   Eastern racer
2. Dekay's brownsnake
   Timber rattlesnake

The Western green mamba, also called Hallowell’s green mamba, is a long and highly venomous snake which was first described by the man who it is named after, Edward Hallowell. Its venom is a mixture of neurotoxins, cardiotoxins, and fasciculins which can be fatal.

1. Copperhead
   Russell's viper
2. American brown snake
   Ring-necked snake

Russell’s viper is a species of venomous vipers which are seen throughout the Indian subcontinents of China and Taiwan. The snake is named after the herpetologist who discovered it, and a bite from it can cause bleeding in urine within 20 minutes as well as necrosis of muscle tissue.

1. Coluber
   Hog-nosed snake
2. Pine snake
   Eastern green mamba

The eastern green mamba, also known as the common mamba, is a venomous arboreal snake which can be found on the coastal regions of East Africa. The females in this species grow larger than the males, but they both have venom which contains cardiotoxins and neurotoxins.

1. Coachwhip
   Rough green snake
2. Boomslang
   Plain-bellied water snake

Boomslangs are large, highly venomous snakes which are both native and restricted to parts of Sub-Saharan Africa. Known for being able to open its jaw up to 170 degrees when biting, its potent venom, contains a hemotoxin which can cause both internal and external bleeding.

1. Gaboon viper
   Centipede snake
2. Smooth earth snake
   Pygmy rattlesnake

The Gaboon viper, which comes from the Bitis genus, is a venomous viper which can be found in the rainforests and savannas of sub-Saharan Africa. A bite from this snake, whose fangs can be as long as 2 inches, can cause a wide range of symptoms from swelling of the tongue to internal bleeding.

1. Massasauga
   Crayfish snake
2. South American bushmaster
   Queen snake

Found on the continent which it is named after, as well as the neighboring twin islands of Trinidad and Tobago, the South American Bushmaster is a venomous pit viper whose venom is known to be deadly in many of the people who are bitten.

1. Banded water snake
   Indian cobra
2. Gopher snake
   Mud snake

The Indian cobra, which is also known as the speculated cobra, is a species of snakes which can be found in many southeast Asian countries. Because of its significance to Indian culture, it is protected under the wildlife act, despite its venom being able to cause respiratory failure and cardiac arrest.

1. Jararaca
   Death adder
2. South American bushmaster
   Mexican dusky rattlesnake

The Mexican dusky rattlesnake is a venomous pit viper which is found in Mexico. Two subspecies of this snake are currently recognized, both of whose bites, but more so the triseriatus, can cause intense pain and swelling at the bite site, faintness and cold perspiration.

1. Western green mamba
   Philippine cobra
2. Coastal taipan
   Forest cobra

The coastal taipan, which is also called the common taipan, is a species of large venomous snakes which are found in Australia and parts of New Guinea. It is one of the most venomous land snakes in the world, and if its bites are left untreated, they are 100% fatal.

1. Eastern green mamba
   Inland taipan
2. Beaked sea snake
   Malayan krait

The beaked sea snake, which is also known as the hook-nosed sea snake, is a highly venomous snake which has been seen in the tropical waters of the Indo-Pacific Ocean. These snakes are responsible for most of the bites caused by sea snakes, and the myotoxins in the venom cause death in most of the people bitten.

1. Jameson's mamba
   Belcher's sea snake
2. Many-banded krait
   Massassauga rattlesnake

The Massasauga is one of the many species of rattlesnakes which have been seen in parts of Mexico and midwestern regions of the United States. Its venom contains a cytotoxin which is known for destroying tissue as well as for disrupting blood flow and preventing clot formation.

1. Bothrops asper
   Mojave rattlesnake
2. Puff adder
   Chinese cobra

The Mojave rattlesnake is a highly venomous pit snake which is found in deserts all across the southwestern states and Central Mexico. This snake has some of the most potent venoms in the world, but due to the availability of antivenom, fatalities are very rare.

1. Russell's viper
   Mulga snake
2. Rhinoceros viper
   Prairie rattlesnake

The prairie rattlesnake, also known as the western or Great Plains Rattlesnake, is a venomous pit viper which is found from northern Mexico, western United States and southwestern Canada. Its venom contains different enzymes which are capable of causing tissue damage and hemotoxic effects.

1. Inland taipan
   Forest cobra
2. Egyptian cobra
   Black-necked spitting cobra

The inland taipan, which is also called the small-scaled snake, is the most venomous snake in the world and it can only be found in Australia. Studies of this snake have revealed that one bite is enough to kill at least 100 adult men in as quickly as 30 minutes if it is left untreated.

1. Coastal taipan
   Blue krait
2. Monocled cobra
   Eastern hognose snake

The blue krait, also called the Malayan krait, is a species of venomous species of snakes which can be found throughout southeast Asia and Indonesia. The friendly snakes have stripes of dark brown, black or bluish-black cross bands and its venom has a high mortality rate in people who do not get treatment.

1. Dubois sea snake
   Cascabel
2. Malayan pit viper
   Tiger snake

The tiger snake, which can be found in parts of Australia and its coastal islands, is a venomous snake which accounts for almost one-fifth of snakebites in the country and over half of the deaths when left untreated. Despite their deadliness, they are protected by the state and people can be charged $7,500 or serve a year in jail or injuring them.

1. Eyelash viper
   Black rat snake
2. Many-banded krait
   Sharp-nosed pit viper

The many-banded krait, which is also called the Taiwanese/Chinese krait, is an extremely venomous snake which can be found in South East Asian countries. When a person is first bit, the area becomes itchy, but within 6 hours, it can develop into ataxia, difficulty breathing, and death.

1. Cape cobra
   Boomslang
2. Eastern milk nake
   Queen snake

The Cape cobra, which is also known as the yellow cobra, is a highly venomous species of cobra which can be found throughout several southern African countries. It is one of the most dangerous species of cobra because its venom is able to cause respiratory and cardiovascular effects.

1. Coral snake
   Eastern brown snake
2. Timber snake
   Ribbon snake

The eastern brown snake, which is also called the common brown snake, is a venomous snake which can be found in Australia and New Guinea. It is the second -most venomous land snake in the world, and it is responsible for 60% of snakebite deaths in Australia alone.

1. Gwardar
   Smooth green snake
2. Northern water snake
   Black mamba

The black mamba is a highly venomous snake which can be found in many sub-Saharan African countries where it is one of the most venomous snakes in the region. They can grow to lengths which exceed 14 feet, and their venom can cause collapse in less than an hour of being bit.

1. Saw-scaled viper
   Kingsnake
2. Garter snake
   Cottonmouth snake

The cottonmouth is a species of pit vipers which have been found in regions of southeastern United States. The venom of the snake contains a cytotoxin which is able to destroy human tissue and often requires amputation at the site of the bite.

1. Indian cobra
   Yellow-bellied sea snake
2. Eastern Racer
   Boomslang

The yellow-bellied sea snake is a species of snakes which have been found in tropical waters around the world. It has highly potent venom which if a person is bitten, it can cause renal damage and neuromuscular paralysis if its anti-venom is not administered within time.

1. Jararaca
   Black mamba
2. Corn snake
   Milk snake

The jararaca is a species of pit vipers which are endemic to the South American countries of Brazil, Paraguay, and Argentina. Drugs like angiotensin-converting enzyme inhibitors which are used to treat heart conditions were developed from the snake’s venom.

1. Tiger snake
   American brown snake
2. Ribbon snake
   Western coral snake

The western coral snake, which is so named because of its brightly colors, is a venomous snake found in Arizona, New Mexico and some regions of Mexico. It is a nocturnal creature whose potent venom has neurotoxic effects including rapid paralysis and respiratory failure.

1. Blue krait
   Western diamondback rattlesnake
2. Coluber
   Hog-nosed snakes

The western diamondback rattlesnake, which is also known as the Texas diamond-back, is a venomous species of rattlesnakes found in Mexico and the southwestern states. It is responsible for many of the snakebite mortalities in that region, and its venom can cause cardiovascular system failure.

1. Eastern brown snake
   Redbelly snake
2. King cobra
   Pine snake

The King cobra, which in some places is referred to as the hamadryad, is a species of venomous snakes which can be found in the forests of Southeast Asian countries. Some of the snakes grow to lengths which exceed 19 feet. The venom is able to cause central nervous system effects.