1. Great white shark
   Mouse
2. Africanized Honey Bee
   Hamster

This type of honey bee may seem somewhat harmless, but these insects are actually very aggressive. They tend to chase their prey down without giving up, no matter the distance.

1. Rabbit
   Cone snail
2. Salmon
   Dolphin

The cone snail blends into its surroundings with its distinct white-and-brown markings. The venom of this small creature is also powerful enough to quickly make a human stop breathing.

1. Dolphin
   Guinea pig
2. Salmon
   Great white shark

The great white shark not only makes an appearance in many shark-related movies, but these deadly sea creatures love to snack on almost anything. This includes garbage, boats and humans.

1. Poison dart frog
   Stonefish
2. Mosquito
   Rattlesnake

The poisonous traits of the poison dart frog are actually on the outside of its skin! Luckily, the colorful black-and-blue skin makes these frogs easy to spot in their surroundings.

1. Tuna
   Salmon
2. Sardines
   Stonefish

The stonefish loves to hide in small caves and near rocks because of how effectively it can blend into its surroundings. This fish is also known as the "world's most poisonous fish."

1. Cone snail
   Tuna
2. Great white shark
   Cape buffalo

The cape buffalo is actually responsible for killing more humans that any other creature in Africa! These animals are also not very predictable, making them hard to domesticate.

1. Polar bear
   Gopher snake
2. Buffalo
   Dolphin

You've probably seen a few polar bears at the zoo, but did you know that polar bears are known to eat almost anything? This is because they don't have any predators and are even known to kill other polar bears.

1. Black rhinoceros
   Zebra
2. Giraffe
   Elephant

The black rhino is considered to be very aggressive because of its poor eyesight. These large animals tend to attack almost anything, charging relentlessly toward their enemies.

1. Crocodiles
   Sardines
2. Box jellyfish
   Stonefish

The venom of the box jellyfish is enough to kill more humans than sharks! Its venom is also known to be fatal to the human heart and nervous system.

1. Squid
   Salmon
2. Puffer fish
   Eel

The puffer fish is so venomous that it can actually "freeze" your diaphragm by paralyzing it. However, if prepared properly, the puffer fish can be enjoyed as a tasty meal in Japan!

1. Emu
   Leopard
2. Wombat
   Koala

Leopards are fast, agile and relentless when catching and killing prey. They are also said to run at speeds of 36 mph.

1. Polar bear
   Rattlesnake
2. Komodo dragon
   Salmon

Komodo dragons actually eat about once a month, but when they get hungry, they will eat just about anything. This includes almost all types of animals and humans.

1. Addax
   Anteater
2. Hyena
   Elephant

Hyenas are fast creatures, traveling at speeds up to 37 mph! These mammals also love to hunt their prey, including humans, during the night hours.

1. African lion
   Chinook
2. Javanese cat
   Stonefish

Known for their long manes, the African lion is one of the largest cats in the world. Its scientific name is "Panthera leo."

1. Deer
   Hippopotamus
2. Dalmation
   Lion

Though hippos are in fact plant-eaters, these creatures are very aggressive and can attack humans at will. They can also run at speeds of up to 19 mph.

1. Saltwater crocodile
   Great white shark
2. Dolphin
   Sardines

Saltwater crocodiles love to use their powerful jaws to relentlessly "roll" their victims in the water until they drown. This is known as the "death roll" and is considered very deadly.

1. Cone shell
   African elephant
2. Mosquito
   Tsetse fly

The African elephant is large enough to trample their victims to death, even creatures like rhinos! Sometimes these elephants are calm, while other times, they display fits of anger.

1. Blue-ringed octopus
   Squid
2. Tuna
   Snail

The venom of a blue-ringed octopus is enough to paralyze a human being for several hours. There is currently no antidote for this type of venom.

1. Tapeworm
   Puffer fish
2. Assassin bug
   Cone shell

Chagas disease is transferred by the assassin bug, which kills thousands of people every year. This bug also got its nickname because it attacks its victims directly in the face.

1. Centipede
   Millipede
2. Sun spider
   Wolves

Rabies can be transmitted from wolves to humans, making it a lethal creature. Wolves also communicate to each other via their howls.

1. Sheep
   Black mamba
2. Corn snake
   California kingsnake

The black mamba snake is one of the deadliest snakes in the world and has extremely aggressive traits. This type of snake is also known for attacking almost anything without being provoked at all.

1. Vampire bat
   Mouse
2. Fire ants
   Great white shark

Fire ants tend to travel in packs to take down their victims by sheer quantity. They are also red in color and carry lethal venom transferred by biting.

1. Manta ray
   Milk snake
2. Freshwater snail
   Basking shark

Believe it or not, the freshwater snail kills thousands of people every year via a disease called schistosomiasis. This disease is known to affect the abdomen.

1. Milk snake
   Tiger
2. Rattlesnake
   Giant isopod

Because they like to snack on nocturnal animals, tigers tend to hunt during the night hours. There have also been reports of tiger attacks at certain zoos.

1. Hippo
   Rhino
2. Mosquito
   Elephant

Though mosquitoes are seemingly harmless insects, they are known for transferring many types of diseases. This results in millions of deaths every year.

1. Carpet viper
   Emerald tree boa
2. Rough tree snake
   Pine snake

This snake has very deadly venom that features hemotoxin. Hemotoxin is an anti-blood-clotting agent that allows its victims to slowly bleed to death.

1. Hamster
   Black widow spider
2. Sun spider
   Scorpion

The black widow spider is all black in color but features a unique red hourglass on its body. These spiders can also live up to three years.

1. Camel cricket
   Ghost spider
2. Carpet beetle
   Ascaris roundworm

The Ascaris roundworm likes to travel through humans, including the intestines and the lungs. Their eggs also hatch inside the human body as well.

1. Blue jay
   Northern cardinal
2. Cassowary
   Robin

The talons of the cassowary bird are strong enough to dismember humans and animals. These birds also have distinct blue necks and bright red eyes.

1. Basking shark
   Manta ray
2. Tsetse fly
   Vampire bat

Hundreds of thousands of people die every year due to African Sleeping Sickness, which is primarily transferred by the tsetse fly. These flies can also be found in Africa.

1. Dog
   Salmon
2. Goldfish
   Kingsnake

Everyone's favorite companion, the dog, can actually be quite lethal due to potential rabies infection! Rabid dogs are said to primarily harm humans in India.

1. Slow loris
   Milk snake
2. Camel spider
   Mouse

The slow loris actually contains poison on its elbows, which is very deadly to animals and humans. These creatures also transfer the poison from their elbows to their mouths for a poisonous bite.

1. Sand shark
   Salmon
2. Tuna
   Bull shark

The bull shark is one of the most lethal sharks on the planet because of their highly aggressive traits. These sharks also like to eat their prey in packs.

1. Cone shell
   Deathstalker
2. Mosquito
   Box jellyfish

The deathstalker is a type of scorpion considered to be one of the most poisonous in the world. You can find these little creatures primarily in North Africa and in some parts of the Middle East.

1. Rough green snake
   Emerald tree boa
2. Corn snake
   Saw-scaled viper

The saw-scaled viper has caused the most snake-related deaths in the world and can be found in Africa and Sri Lanka. Another name for this type of snake is "echis."

1. Long-bodied cellar spider
   American house spider
2. Sac spider
   Brazilian wandering spider

This type of spider likes to wander around and ends up in cars and even houses! You'll find these spiders mainly in South America, while some reside in Central America.

1. Boomslang
   Northern water snake
2. Black rat snake
   Bullsnake

The venom of the boomslang snake causes its victims to die a very slow and painful death. Their hemotoxin venom also has an anti-blood-clotting effect on humans.

1. Kingsnake
   Inland Taipan
2. Boa
   Bullsnake

One of the deadliest snakes in the world, the inland taipan, resides in various regions of Australia. Its scientific name is "Oxyuranus microlepidotus."

1. Booklice
   Cave cricket
2. Bullet Ant
   Tangle web spider

The sensation of getting bitten by a bullet ant is said to be reminiscent of being shot. These ants are also black in color and feature sharp jaws.

1. Gila monster
   Green anole
2. Crested lizard
   Leopard gecko

The gila monster can be found in dry areas of the United States, primarily in Southwestern regions. Its binomial name is "Heloderma suspectum."