1. Fangs
   Claws
2. Tongue
   Stinger

Only poisonous snakes have fangs. The size of these fangs vary, though.

1. The tongue
   The tail
2. The head
   The neck

A rattlesnake uses its rattle to intimidate potential threats. However, they have been known to strike before using the rattle.

1. Water
   Alcohol
2. Suck it out
   Anti-venom

Snake venom is different than poison. Poison is ingested, while venom is injected into a victim.

1. Circular
   Square
2. Triangular
   Rectangular​

Rattlesnakes try to camouflage themselves to avoid detection. For this reason, it's easy to come upon one without ever knowing it's there.

1. Copperhead
   Small-eyed snake
2. King cobra
   Boomslang snake

King cobras can grow as long as 18 feet long. They also can raise their heads almost to a person's eye level. Now, that's freaky.

1. Common krait
   Russell's viper
2. Gaboon viper
   Indian cobra

Indian snake charming is an ancient skill still used today. However, animal rights activists are making it more difficult for snake charmers to continue entertaining.

1. Kingsnakes
   Black mambas
2. Eastern brown snakes
   Inland taipans

Kingsnakes are not poisonous snakes. Instead, they use constriction to kill their prey.

1. Europe
   Africa
2. South America
   Tarantino movie sets

Black mambas are the second largest poisonous snake in the world. They can grow up to 14 feet long.

1. Boomslang snakes
   Cottonmouths
2. Common kraits
   Black mambas

Black mambas can travel up to 12 miles per hour. Their speed is more used for fleeing rather than attacking.

1. Diamondback
   Water moccasin
2. Eastern coral snake
   Coastal coral snake

Water moccasins are usually between 2 and 4 ft long. This is shorter than some other venomous snakes, but their muscular bodies make them look much more intimidating.

1. East Asia
   Europe
2. North America
   South Africa

Copperheads are not afraid to go after larger prey. After they strike the prey, they let it go then follow it until the prey dies.

1. Cottonmouth
   Coral snake
2. Diamondback
   Copperhead

Young cottonmouths have distinct bands of colors. As they age, these colors eventually fade away.

1. Morning
   Day
2. Afternoon
   Night

Common kraits typically latch onto their victims before releasing from a bite. Their bites have about an 80% death rate if left untreated.

1. Python
   Boa constrictor​
2. Garden snake
   Anaconda

At the moment, the largest snake known to have ever existed was the titanoboa. This snake reached up to fifty feet in length.

1. Heat
   Cool air
2. Rodents
   Garbage

Many snakes have difficulty adapting to human settlements and prefer to stay out in nature. Other snakes just follow the food, which means tracking rodents into houses.

1. Fea's viper
   Night adders
2. Pitless viper
   Pit viper

Pit vipers have a heat sensor between their eyes. This allows them to stalk potential prey.

1. Python
   Kingsnake
2. Boa constrictor
   King cobra

Pythons have been known to grow up to 25 ft in length. Though they aren't poisonous, they are still quite deadly because of their size and constricting ability.

1. Bites once
   Bites and latches on
2. Several quick strikes
   Constriction

The coastal taipan is the largest venomous snake in Australia. They usually reach about 6 ft in length but have been known to grow over 9 ft.

1. Britain
   China
2. Norway
   Argentina

The many-banded krait is typically shy and will avoid confrontation. However, if it's cornered, it will strike like most snakes.

1. Tiger snake
   Gaboon viper
2. Common death adder
   Northern water snake

The gaboon vipers fangs usually reach about 4 cm in length. They use these fangs to latch onto prey until it's dead.

1. Australia
   Asia and Africa
2. North America
   South America

In Asia and Africa, people often live in more rural areas. These areas have less access to medical care, and snake bites are much more dangerous.

1. North America
   Australia
2. South America
   Europe

Despite is deadly venom, the inland taipan is not an apex predator. In fact, the inland taipan is hunted by another snake, the king brown snake, which is immune to the taipan's venom.

1. Saw-scaled viper
   Indian cobra
2. Russell's viper
   Boomslang snakes

These snakes are brown like tree limbs. If they think they're spotted, they will sway back and forth as if the wind were blowing a limb.

1. The oldest in the group mates.
   The youngest in the group mates.
2. They fight.
   The female​ decides.

These snakes aren't afraid to fight for love. In many ways, it's more of a wrestling match, though.

1. Indian cobra
   Russell's viper
2. Inland taipan
   Copperhead

The Russell's viper is named after Patrick Russell. He was a Scottish herpetologist who studied Indian snakes.

1. Malayan krait
   Beaked sea snake
2. Inland taipan
   Cape cobra

A single bite from an inland taipan could kill nearly 100 men. Luckily, humans rarely ever come into contact with these snakes.

1. Common krait
   Rattlesnake
2. Cottonmouth
   Gaboon viper

The bite from a common krait may feel like a mosquito bite. However, they still inject deadly venom that will kill humans if left untreated.

1. Eggs
   Live birth
2. Eggs hatch inside female's body
   Partially born then nurtured in female's mouth

This type of birth is known as ovoviviparous. A regular litter from a Russell's viper can produce between 20 and 40 snakes.

1. Red and white
   Red and yellow
2. Black and white
   Black and yellow

The venom from a many-banded krait is a neurotoxin. This means the venom shuts down the nervous system, as the victim slowly dies.

1. Cottonmouths
   Saw-scaled viper
2. Anacondas
   Common kraits

The saw-scaled viper can be found in parts of rural Asia. Since these areas don't have regular access to health care, snake bites are much more deadly.

1. Rattlesnakes
   Boomslang snakes
2. Inland taipans
   Eastern brown snakes

Eastern brown snakes are not afraid to wander into urban areas. This puts them into common contact with people living in Australia.

1. Saw-scaled viper
   Indian cobra
2. Common krait
   Russell's viper

Saw-scaled vipers might be small, but that doesn't make them any less dangerous. These snakes are known to be quite aggressive in nature.

1. Black
   Red
2. Gray
   Yellow

Black mambas are typically a shade of gray. However, inside their mouths are black, giving them their name.

1. Small-eyed snakes
   Eastern brown snakes
2. Copperheads
   Rattlesnakes

Small-eyed snakes usually hunt at nighttime. They have been known to eat their own kind.

1. Indian cobra
   Common krait
2. Russell's viper
   Inland taipan

The Big Four snakes of India are the deadliest snakes in that part of the world. They cause thousands of deaths each year.