1. Black Mamba
2. Egyptian Cobra
3. Malayan Krait
4. Gaboon Viper

The Egyptian Cobra, also referred to as Cleopatra's Asp, is rumored to have gotten its name after Cleopatra committed suicide with the venom of the Egyptian Cobra. She most likely chose this snake because it has unusually quick-acting, deadly venom.

1. Indian Cobra
2. Rhinoceros Viper
3. Mojave Rattlesnake
4. Black-Banded Sea Krait

Similar to land snakes, the Black-Banded Sea Krait has scales, a forked tongue, and lidless eyes - and it breathes air. Because it spends the majority of its time under water, it differs from land snakes, however, having a short, flattened tail which propels it quickly when swimming.

1. Yellow-Bellied Sea Snake
2. Copperhead
3. Eastern Coral Snake
4. Water Snake

Infant Coral Snakes hatch from eggs laid by the female snake. Coral Snakes do not give birth to live young like many of the other North American venomous snakes. At birth, Coral Snakes are seven inches long and are already at their full venomous potential.

1. Cottonmouth
2. Western Green Mamba
3. Bothrops Jararaca
4. Fer-de-lance

The Western Green Mamba is native to West Africa. It lives in tropical and woody areas. The toxicity of its venom can vary tremendously, depending on where it lives and what it eats.

1. Hydrophis Belcheri
2. Fer-de-lance
3. Bothrops Jararaca
4. Mojave Rattlesnake

The Mojave Rattlesnake has the most potent venom of any rattlesnake in North America. Its venom is about 16 times more toxic than that of the Sidewinder and surpasses even that of the Tiger Rattlesnake. It can be particularly aggressive to humans and is quick to defend itself if disturbed.

1. Horned Viper
2. Mojave rattlesnake
3. Terciopelo
4. Eastern Brown Snake

Horned Vipers are ecologically important because they keep a number of rodents under control. They are a smaller snake variety, size maxing around 2 feet. Despite their small size, they can survive 14 to 18 years in the wild!

1. Chinese Cobra
2. Malayan Krait
3. Tiger Rattlesnake
4. Common Death Adder

The intriguing look of a Tiger Rattlesnake comes from colors varying from bluish gray to lavender, or even buff-colored. Their sides and underbelly can be orange, pink or cream in color.

1. Jararaca
2. Green mambas
3. Inland taipan
4. Forest Cobra

The Forest Cobra is the second largest species of Cobra on earth, measuring upwards of 7 feet! When in captivity, they become very aggressive and dominating, perhaps due to their large size.

1. Rhinoceros Viper
2. Rattlesnake
3. Red-Bellied Black Snake
4. Banded Krait

The Banded Krait is not known to bite during the daytime. During night, however, it can be very vicious. The venom from one bite is enough to kill two dozen fully grown men!

1. Yellow-bellied Sea Snake
2. Terciopelo
3. Malayan Krait
4. South American Bushmaster

Found in the warm waters of the Pacific and Indian oceans, the Yellow-bellied Sea Snake consumes only fish. Females are much larger than males for this particular breed.

1. Tiger Snake
2. Death Adder
3. Caspian Cobra
4. Viper

Caspian Cobras are generally aggressive and bad-tempered, starting from a young age. They are great climbers and swimmers, especially when going after their prey.

1. Tiger Snake
2. Black Mamba
3. Taiwanese/Many-banded Krait
4. Mali Cobra

The Taiwanese/Many-banded Krait is a nocturnal snake, found throughout China and Southeast Asia. They tend to be defensive when it is dark; however, they are generally a timid and placid species. In the daytime, they hide under stones or in holes. Hibernation occurs November through April.

1. Black Mamba
2. Indochinese Spitting Cobra
3. Black Desert Cobra
4. Dugite

Cobras spit by squeezing their venom glands, which pushes the venom into the fangs and out of the front holes. Spitting Cobras have larger holes in their fangs than other venomous snakes, which squirt rather than ooze. Their venom can squirt 6-8 feet!

1. King Cobra
2. Inland Taipan
3. Mozambique Spitting Cobra
4. Boomslang

The Mozambique Spitting Cobra has a fierce bite. Their venom is predominately cytotoxic, causing serious tissue damage. It also causes neurotoxic effects, like breathing issues or drowsiness.

1. Western Diamondback
2. Copperhead
3. Olive Brown Sea Snake
4. Horned Viper

The Olive Brown Sea Snake looks like a big worm, with its head blending into its body. Its skin is smooth, hence its scientific name, laevis, which is derived from the Latin word for ‘smooth’.

1. Monocled Cobra
2. Chinese Cobra
3. Garter Snake
4. Red-bellied Black Snake

The Chinese Cobra is a very alert snake variety. If confronted, it will raise its forebody and spread its hood, ready to strike. The younger snakes tend to be more aggressive than adults, as they are unfamiliar with their surroundings. The Chinese Cobra avoids human contact at all costs.

1. Common European Viper
2. Cottonmouth
3. Eastern Green Mamba
4. Mojave Rattlesnake

The Mojave Rattlesnake tends to be aggressive towards humans, especially if disturbed or harassed. Predators like the California Kingsnake and roadrunners are quick to kill and eat the Mojave Rattlesnake.

1. Black Mamba
2. Many-banded Krait
3. Rhabdophis tigrinus
4. Coastal Taipan

Black Mambas reside in South and East Africa’s savannas, rocky hills, and open woodlands. They slither faster than most people can run - part of the reason they are so deadly!

1. Mamushi
2. Tiger Snake
3. Speckled Brown Snake
4. Cape Cobra

Brown Snakes are sometimes referred to as “city snakes,” because they tend to populate residential areas. They can live in a variety of habitats, thus making them very abundant.

1. Yellow-bellied Sea Snake
2. Indian Krait
3. Easter Green Mamba
4. Dugite

The Indian Krait, or Common Krait, is India's most feared and most venomous snake. Attacks on humans have been widely reported, with a mortality rate of 7 percent. This makes the Indian Krait one of the "big four" species.

1. Indian Cobra
2. Death Adder
3. Water Snake
4. Rattlesnake

An untreated Death Adder bite is one of the most dangerous in the world. You can die within 6 hours if the bite is not properly treated. This vicious creature is known to kill other snakes, as well.

1. Caspian Cobra
2. Boomslang
3. Eastern Brown Snake
4. Spectacled Cobra

Spectacled Cobras can live up to 20 years! They can be found anywhere with an excess of rats to feast on, so they can easily hunt their prey.

1. Horned Viper
2. Copperhead
3. South American Bushmaster
4. Black Mamba

The fierce South American Bushmaster can grow over 12 feet, making it the longest venomous snake in America. It is also the second longest venomous snake in the world, after the King Cobra.

1. Western Brown Snake
2. Bitis Arietans
3. Yellow-Bellied Sea Snake
4. Timber Rattlesnake

Western Brown Snakes that are kept in captivity can change the color of their skin depending on the season. Males are far more common in this variety.

1. Micrurus Fulvius
2. Sistrurus Miliarius
3. Fea's Viper
4. Monocled Cobra

Considered the most primitive of vipers, the Fea's Viper inhabits Myanmar, southeastern Tibet, southern China, and northern Vietnam. It has shorter fangs than those of other subfamilies and a somewhat flattened head.

1. Vipera Aspis
2. Chinese Cobra
3. Enhydrina Schistosa
4. Cape Cobra

The Cape Cobra produces venom more powerful than all other African cobra species. Thus, it is the most dangerous snake in Africa. A bite to an adult human brings a 60% chance of death if no antivenom is applied.

1. Common European Viper
2. Rhabdophis Tigrinus
3. Boomslang
4. Jameson's Mamba

The Jameson's Mamba is highly arboreal, more so than any other mamba species, and descends to the ground only in pursuit of prey. Like other mamba species, it is diurnal and prefers to flee from danger.

1. Tiger Snake
2. King Cobra
3. Inland Taipan
4. Many-Banded Krait

The King Cobra is the longest venomous snake in the world, capable of reaching a length of 20 feet. It feeds almost exclusively on other snakes, though it is known to eat rodents and lizards as well.

1. Congo Water Cobra
2. Rhabdophis Tigrinus
3. Gaboon Viper
4. Rattlesnake

The Congo Water Cobra is one of only two species of water cobras in the world. This aquatic species rarely ever wanders far from its home in the water, and it is rarely seen by humans. It is regarded as one of the most secretive cobras on the planet.

1. Cottonmouth
2. Clarence River Snake
3. Enhydrina Schistosa
4. Western Diamondback Rattlesnake

The Clarence River Snake is found in isolated pockets of Coastal Queensland and Northern New South Wales. A diurnal snake, it is often seen during the day, feeding on frogs, small reptiles, and mammals.

1. Dugite
2. Chinese Cobra
3. Aipysurus Duboisii
4. Mulga Snake

Even though the Mulga Snake tolerates venom of many other poisonous snakes, it dies after close contact with the poisonous cane toad. This type of toad is responsible for a drastic decline in the number of Mulga Snakes in the northern parts of Australia.

1. Black-Necked Spitting Cobra
2. Calliophis Bivirgata
3. Cerastes Cerastes
4. Lachesis Muta

The Black-Necked Spitting Cobra doesn’t always have a black neck. Sometimes it can be pure copper or olive brown, and sometimes it can have black and white stripes. It is a very adaptable snake that can thrive in different environments.

1. Pseudechis Australis
2. Trimeresurus stejnegeri
3. Micrurus fulvius
4. Cottonmouth Snake

Like all pit vipers, the Cottonmouth Snake has two heat sensing pits, located between the eyes and the nostrils. These pits allow the snake to pinpoint live prey and to strike without needing to physically see them. This hunting adaptation is particularly useful after dark, when most animals’ bodies are warmer than the air around them.

1. Cottonmouth
2. Red-Bellied Black Snake
3. Eastern Green Mamba
4. Gaboon Viper

The Red-Bellied Black Snake belongs to the Elapid family of snakes, which means it has fangs located in the front of its mouth. The fangs on this snake are relatively small.

1. Death Adder
2. Tiger Snake
3. Philippine Cobra
4. Mexican West Coast Rattlesnake

Also known as the Mexican Green Rattler or the Mexican West Coast Green Rattlesnake, the Mexican West Coast Rattlesnake lives in treeless areas of Mexico and can be fairly easily tamed to live in zoos. It is born mostly red but can change color as an adult.

1. Coastal Taipan
2. Forest Cobra
3. Eastern Green Mamba
4. Terciopelo

Juvenile Eastern Green Mambas are blueish-green. They attain their brighter green coloration in successive skin shedding, progressing from the front to the back of the body.

1. South American Bushmaster
2. Timber Rattlesnake
3. Jararaca
4. Indochinese Spitting Cobra

The Timber Rattlesnake does not lay eggs like other pit vipers. Their eggs are kept inside the female's body until they hatch.The average litter consists of between 5 to 20.

1. Sind Saw-Scaled Viper
2. Eastern Brown Snake
3. Forest Cobra
4. Black Desert Cobra

Though small in size, the Sind Saw-Scaled Viper is a dangerous snake with an aggressive temperament. It is distinguished by a prominent, dark brown, arrow-shaped marking on the head and is covered in small, heavily keeled scales. It lives in hot, dry regions in sandy, rocky, or gravel habitats with sparse and scrubby vegetation.

1. Indian Cobra
2. Inland Taipan
3. Caspian Cobra
4. Gaboon Viper

The Inland Taipan, or Oxyuranus microlepidotus, is claimed to be the most venomous snake in the world. It resides in semi-arid regions of central east Australia and is protected by law, just like many other snake varieties.

1. Tiger Rattlesnake
2. King Cobra
3. Eastern Brown Snake
4. Common Krait

The Eastern Brown Snake produces venom known to cause diarrhea, dizziness, convulsions, renal failure, paralysis, and cardiac arrest. If you don't receive medical treatment in time, bites can be fatal.

1. Cascabel
2. Mali Cobra
3. Malayan Pit Viper
4. Indochinese Spitting Cobra

Found in West Africa, the Mali Cobra is a species of spitting cobra. It has the ability to raise the upper part of its body,

1. Samar Cobra
2. Green Mamba
3. Jararaca
4. Tiger Snake

The Jararaca is distinguished by a small sensory pit between each eye and nostril. It has a broad triangular head and is usually about 4 to 7 feet long. It is gray or brown, marked by a series of black-edged diamonds, often bordered in a lighter color. Its bite can be fatal to humans.

1. Puff Adder
2. Many-Banded Krait
3. Terciopelo
4. Dubois' Seasnake

When disturbed, this snake will coil into a defensive S-shaped posture and hiss loudly, hence its common name, Puff Adder. This sound is a warning signal, which probably shouldn't be ignored.

1. Hydrophis Belcheri
2. Gaboon Viper
3. Russell's Viper
4. Bitis Arietans

This species was named after Patrick Russell, the Scottish herpetologist that first described many of the Indian snakes. The Russell's Viper is a member of the "big four" snakes of India. Humans kill this snake for its skin and meat.

1. Monocled Cobra
2. Russell's Viper
3. Samar Cobra
4. Rhinoceros Viper

Monocled cobras get their name from their O-shape hood pattern, also known as the monocellate hood pattern. They live with rodents (and eat them) in their burrows.

1. Eastern Green Mamba
2. Lowlands Copperhead
3. Golden Lacehead
4. Bothrops Jararacussu

The Lowlands Copperhead is the only venomous snake found above the snow line. It is active in weather that would be considered too cold for most snakes. Copperheads love being around all types of water - dams, soaks, canals, drainage ditches, and along the verges of roads.

1. Monocled Cobra
2. Malayan Pit Viper
3. Puff Adder
4. Coastal Taipan

The Coastal Taipan belongs to the Elapidae family. They use abandoned animal burrows, hollow logs, and piles of vegetation and litter as shelter.

1. Rinkhals
2. Horned Viper
3. Trimeresurus Mucrosquamatus
4. Mamushi

Rinkhals are also called ringhals, which derives from the Dutch “ring hals,” meaning "ringed neck," because of the light color crossbands usually found around the throat. They are sometimes also called Ring-Necked Spitting Cobras for the same reason.

1. Cascabel
2. Red-bellied Black Snake
3. Northern Philippine Cobra
4. King Cobra

The Northern Philippine Cobra is capable of spitting venom up to three meters! Its venom has the deadly ability to interrupt the transmission of nerve signals and to cripple the respiratory system.

1. Pseudechis Australis
2. Trimeresurus Stejnegeri
3. Terciopelo
4. Golden Lancehead

In Costa Rica, the Terciopelo is the most feared snake, as they are responsible for almost half of all snake bites and one-third of all hospitalizations. They can be hard to see in their natural habitat, which makes them even more feared.