1. Peru
   India
2. China

India's massive human population and snake-friendly climate mean many, many snake bites.

1. South America
   Asia
2. Africa

Africans are used to seeing this snake, which can reach lengths of up to 10 feet.

1. Inland taipan
   Mainland tiger snake
2. Australian brown snake

The brown snake's venom is often ranked as the second-most poisonous in the world.

1. Africa
   Russia
2. Brazil

Also known as the yellow cobra, it is very common in southern Africa.

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

The Russell's viper is involved in many thousands of deadly snakebite cases each year, particularly in India.

1. About five minutes
   About 30 minutes
2. About an hour

The huge snake can unleash large volumes of highly toxic venom, killing people in only about half an hour.

1. Timber rattlesnake
   Western diamondback rattlesnake
2. Eastern diamondback rattlesnake

The Eastern diamondback can weigh more than 30 pounds, making it one of the biggest rattlesnakes on Earth.

1. Around 10%
   Around 15%
2. Around 30%

Perhaps a third of victims may die; antivenom is available but may be required in large doses to counter the bite.

1. Inland taipan
   King cobra
2. Eastern diamondback

The king cobra can reach freakish lengths of more than 18 feet.

1. Indian cobra
   Common krait
2. Terciopelo

The terciopelo is indeed a dangerous snake, but it's not listed as one of the big four. They are the Russell's viper, Indian cobra, common krait and saw-scaled viper.

1. A recreational drug
   A poison for murder
2. A salve to heal open wounds

Believe it or not, substance abusers have been known to use cobra venom (in controlled amounts) for a high.

1. Nearly 20 mph
   Nearly 7 mph
2. Nearly 4 mph

At 7 mph, humans need to accelerate to a fast jog to outrun an angry mamba.

1. 100
   1,000
2. 10,000

It causes around 10,000 fatalities each year; antivenom often is not effective.

1. 15 hours
   20 hours
2. 24 hours

It might take 15 hours, but more susceptible victims could die much more quickly.

1. 2
   4
2. 8

The poison could kill about four people, but fortunately, many bites are "dry" and the coral snake is reluctant to strike.

1. Black-banded sea krait
   Coastal taipan
2. Yellow-bellied sea snake

The yellow-bellied sea snake drifts on ocean currents and is found all over the place, from New Zealand to California to Peru.

1. Chain viper
   10-step snake
2. Scissors snake

No one calls it a 10-step snake, but it's also called a seven pacer, chain viper and scissors snake.

1. Inland taipan
   Black mamba
2. King cobra

About 80% of victims die from inland taipan bites unless they receive medical treatment immediately.

1. They have very short fangs.
   They are exceedingly docile.
2. There are only about 1,000 left in the wild.

The inland taipan would much rather flee from humans than be forced into biting.

1. Around 150 feet
   Around 20 feet
2. Around 10 feet

The very poisonous snake lives in shallower waters but is not afraid to plummet into depths of more than 150 feet.

1. About 10
   About 30
2. About 60

As many as 60 people could die from the venom in a single bite; to make matters worse, these snakes are very irritable and aggressive.

1. 3 feet
   About 5 feet
2. Nearly 10 feet

So even if you're 10 feet away, the snake might manage to hit you with its poison.

1. Golden lancehead
   Saw-scaled viper
2. Coastal taipan

The saw-scaled viper is not afraid to strike, and its bite is also said to be extremely painful.

1. True
2. False

Black mambas are one of the world's most aggressive (and most poisonous) snakes and are considered more likely to strike than their green cousins.

1. 1956
   1987
2. 1991

Before 1956, a bite from the coastal taipan was essentially a death sentence.

1. Roughly 10,000
   Roughly 18,000
2. Roughly 25,000

In India alone, this viper kills more than 20,000 annually.

1. Asia
   Africa
2. South America

Most commonly found in West Africa, these snakes kill more people than all other African snake species combined.

1. They only live on a remote island.
   They almost never strike.
2. They have little nubs for fangs.

They are found only on Ilha da Queimada Grande, an uninhabited island in Brazil.

1. About 30%
   About 50%
2. About 70%

Left untreated, about half of people will perish from this adder's toxic bite.

1. 90 minutes
   3 hours
2. 5 hours

That's five hours they have to swim away from you … or lie in wait and then zap you with their potentially deadly poison.