1. Eelpout
   Rhinoceros
2. Anteater
   Komodo dragon

A rhinoceros has a deadly horn in front of its face, coupled with a fast running speed. You won't want to be in its way when that happens!

1. Lion
   Blue Hake
2. Pelican eel
   Heron

Lions are undeniably a scary killer beast of the jungle. Yes, even Simba!

1. Bristlemouth
   Daggertooth
2. Pollywoggle
   Cape buffalo

The wild cape buffalo in Africa is a scary beast. It has been known to attack humans and kill them.

1. Barracuda
   Gorilla
2. Great white shark
   Moose

The great white shark will bite onto anything it fancies. Eating it afterward is another thing.

1. Flabby whalefish
   Stoplight loosejaw
2. Chimpanzee
   Polar bear

Polar bears are so scary that they could also end up attacking each other. When you're in an isolated area, perhaps that's their brand of beastly entertainment...

1. Hyena
   Telescopefish
2. Hedgehog
   Guinea pig

Hyenas indeed emit some sort of sound that's like laughing. But it's no laughing matter when they start attacking.

1. Jackal
   Cuttlefish
2. Armadillo
   Hippopotamus

The hippopotamus could be found all over Africa. It's also garnered a scary reputation there of being a car attacker!

1. Basilisk
   Baboon
2. Elephant
   Spookfish

By its very size, an elephant can literally trample some poor creature to death. The African elephant kind, for instance, is also a forceful and aggressive species, so beware while on a safari!

1. Barreleye
   Komodo dragon
2. Sabertooth fish
   Gerbil

A Komodo dragon is a very patient and zen hunter. But once it pounces, zen gets thrown out the window!

1. Flashlight fish
   Rook
2. Leopard
   Narwhal

Leopards get more fierce the more they're hurt. So you'd know well then to stay away from one.

1. Tiger
   Bat
2. Black mamba
   Lantern shark

A tiger is indeed colorful and majestic to look at. But it's still a deadly creature, so don't go near one in a zoo...

1. Frogfish
   Camel
2. Wild boar
   Deer

Deer sometimes run toward moving cars, which results in injuries or deaths in humans (and them, if they're not so lucky). If that's not a killer beast, we don't know what is!

1. Magpie
   Goblin Shark
2. Dog
   Eel

Dogs could also cause deaths among humans. Ever heard of rabies?

1. Grizzly bear
   Leafy seadragon
2. Kudu
   Bison

Grizzly bears are found mostly in North America. Hm, will they ever migrate?

1. Amphipod
   Wild boar
2. Stingray
   Caribou

In some countries, wild boars just roam around freely. While they look like overgrown rough wild pigs, they could be aggressive and run after you. True story!

1. Hairy frogfish
   Gazelle
2. Goose
   Panther

The big black panther cat might be majestic to look at, but it could be deadly when needed. So beware, especially if it's hungry!

1. Dumbo octopus
   Lancet fish
2. Cow
   Goat

Cows might be domesticated animals now, but they can still attack when provoked. And yes, there have been human deaths on account of this.

1. Fanfin seadevil
   Armadillo
2. Aardvark
   Moose

A moose is actually a relative of the deer, but a bigger one. And it's ferocious when needed!

1. Lionfish
   Flamingo
2. Pittacus
   Cougar

A cougar is a well-toned huge animal. That's why it's so skilled at hunting.

1. Black bear
   Acorn worm
2. Hamster
   Herring

Black bears are known to loiter around residential areas where human contact is imminent. They're not scared of anything, much less people!

1. Wolf
   Dragonfish
2. Squirrel
   Caterpillar

A wolf is basically a super-wild dog. That's why many myths and legends have exploited this and told of beastly tales featuring their kind.

1. Big Red Jellyfish
   Crane
2. Hare
   Coyote

Coyotes indeed like to run after smaller creatures, such as your cute little dog! So beware when you're near one.

1. Claw lobster
   Bull
2. Wombat
   Gnat

A bull can run really fast, despite its huge body size, and attack you with all its might. That's why the running with the bulls ritual in Pamplona, Spain baffles people.

1. Snipe eels
   Manatee
2. Horse
   Jay

Horses are killer beasts as well because once you get in their way, their kick could be fatal. Never, EVER stand directly behind a horse!

1. Tiger shark
   Coffinfish
2. Magpie
   Newt

Yes, a tiger shark also has some stripe designs on it, hence the name. They're also as fierce!

1. Duck
   Crocodile
2. Snaggletooth
   Swine

Asia, Africa and Australia have a lot of crocodiles. But the US has them, too.

1. Mackerel
   Jackal
2. Wolverine
   Dingo

A dingo is basically a kind of wild dog. It's mostly found in Australia, mate.

1. Requiem
   Crane
2. Falcon
   Frilled shark

The frilled shark uses its strangely-grown teeth as their main weapon of mass destruction. Swim away fast!

1. Alligator
   Perciforms
2. Raven
   Dragonfly

An alligator generally has a wider snout than the crocodile. Regardless of this fact, run if you see one!

1. Raven
   Billfish
2. Killer whale
   Kangaroo

Killer whales are such great underwater hunters. Smaller creatures beware!

1. Magpie
   Cassowary
2. Opah
   Rattail

Cassowary is a deadly bird. It may not look it at first, but trust us on this one -- and don't touch it!

1. Flatfish
   Ibex
2. Bull shark
   Opossum

Avoid waters that are warm. Bull sharks like to hang out there!

1. Puma
   Brotula
2. Stingray
   Locust

The puma is, after all, the cousin of the lion, tiger, cheetah, and the panther. Deadly runs in the family.

1. Lumpfish
   Sauries
2. Red fox
   Louse

A red fox can hunt really well. But it can also get hunted down by a pack of something bigger...

1. Unicorn crestfish
   Lark
2. Ape
   Hornet

As portrayed in the movies, apes can be gentle creatures. But given the wrong triggers, they can use their incredible strength to do huge damage.

1. Flatfish
   Hammerjaw
2. Oyster
   Wolverine

A wolverine uses its claws and jaws to aim and maim. No rhyme nor reason why you'd want to befriend one now...

1. Ridgehead
   Seahorse
2. Giant anteater
   Porcupine

A giant anteater may be gentle when consuming ants and termites, but it can also get deadly when provoked. Remember, it has claws that can mangle you bad!

1. Raccoon
   Termite
2. Platypus
   Seal

A male platypus comes equipped with a bony spur that contains deadly poison. Yeah, they're not at all that cute!

1. Tarsier
   Vicuña
2. Leopard seal
   Mongoose

Did you know that leopard seals hunt all sorts of wild life including penguins.

1. Beaver
   Walrus
2. Salamander
   Yak

A beaver can be a dangerous beast, too, you know! Don't get it all rattled up, because it can use its huge teeth on you!