1. Killer whale
   Buffalo
2. Tortoise
   Stingray

As an icon of the United States of America, this animal is featured on various United States flags and coins. The word "buffalo" derives from the French word "boeuf," meaning "cow."

1. Puffer fish
   Chinchilla
2. Ocelot
   Panther

This large cat is also referred to as the black panther. With 31 species, it can be found in American, Asian and African swamp lands, forests and grasslands.

1. Koala
   Turtle
2. Kangaroo
   Panda

The turtle is both a sea-dwelling and freshwater animal. It is considered to be one of the oldest groups of reptiles, with over 350 known species.

1. Tapir
   Jaguar
2. Skunk
   Caiman

Known for spraying a liquid with a stench, skunks can be found in North and South America. They vary in color from black and white to brown or gray as well as cream.

1. Komodo dragon
   Skunk
2. Octopus
   Polar bear

Komodo dragons, as you may have guessed, aren't actually dragons. They're huge lizards that can only be found on certain islands near Indonesia.

1. Duck
   Llama
2. Puffer fish
   Ocelot

Llamas are considered very social and are part of a herd. These domesticated South American animals can weigh up to 200 kilograms.

1. Koala
   Tortoise
2. Chinchilla
   Wolf

This four-legged animal measures up to 63 inches in length, with the males weighing an average of 99 pounds. They have an average lifespan of 16 years.

1. Stingray
   Killer whale
2. Chameleon
   Octopus

A chameleon comes in a variety of colors, with many species possessing the ability to change their color. On average, chameleons in the wild have a lifespan of 3 years, but in captivity they can live up to 10 years.

1. Bear
   Koala
2. Polar bear
   Skunk

Bears consume both plant and animal matter. Eight bear species are in existence and can be found in the northern hemisphere and parts of the southern hemisphere.

1. Horse
   Jaguar
2. Tapir
   Penguin

By age five, a horse reaches full adult development. Female horses, also referred to as mares, carry their young for a period of approximately 11 months.

1. Penguin
   Jaguar
2. Panda
   Toad

Toads are known for their leathery and dry skin, short legs and bumps over their external skin glands. The word "toad" is often used to refer to frogs.

1. Crocodile
   Tortoise
2. Chinchilla
   Gecko

Crocodiles are native to the Americas, Africa, Asia and Australia. These large aquatic reptiles and predators can live up to 70 to 100 years.

1. Stingray
   Octopus
2. Rabbit
   Killer whale

Rabbits are small mammals commonly referred to as bunnies. They are domesticated and have been kept as livestock.

1. Deer
   Kangaroo
2. Ocelot
   Duck

With over 60 subspecies across the world, deer are the only animals with antlers. Hunting deer has been a pastime for many since the Middle Ages.

1. Panda
   Caiman
2. Mouse
   Tortoise

This small rodent has increasingly become a companion pet for many. With its poor eyesight, a mouse relies on its sense of smell to find food and escape predators.

1. Goat
   Jaguar
2. Tapir
   Koala

Goats are one of the earliest groups of animals to be domesticated. They have been primarily used for milk and meat.

1. Bear
   Octopus
2. Kangaroo
   Weasel

These long-bodied mammals have small heads, short legs and long necks. With 17 species in existence, weasels are found worldwide excluding Australia, Antarctica and neighboring islands.

1. Gecko
   Lemur
2. Stingray
   Puffer fish

These nocturnal, four-legged animals are native to the island of Madagascar. With over 100 species, lemurs have a lifespan of up to 19 years.

1. Kangaroo
   Caiman
2. Tapir
   Giraffe

As the world's tallest terrestrial animal, the giraffe towers between 16 and 20 feet. Although its neck and legs are long, the rest of its body is short.

1. Tortoise
   Fox
2. Caiman
   Skunk

Foxes are known for their upright pointed ears and long bushy tails. They utilize the earth's magnetic field to hunt prey.

1. Penguin
   Panda
2. Raccoon
   Kangaroo

Raccoons are native to North America and are considered very intelligent creatures. They are notable for their facial masks, ringed tails and dexterous front paws.

1. Koala
   Jaguar
2. Elephant
   Skunk

One of the most distinctive features of an elephant is its trunk, which is used for lifting water, breathing and holding objects. They are located in Southeast Asia, South Asia and sub-Saharan Africa.

1. Polar bear
   Penguin
2. Killer whale
   Cow

Cows are the female adult version of cattle. They are red-green colorblind, and, like human beings, they have a gestation period of 9 months.

1. Skunk
   Octopus
2. Lion
   Caiman

A lion is a known inhabitant of savannas and grasslands and has a lifespan of up to 14 years. This muscular cat is known for the hairy tuft at the end of its tail.

1. Polar bear
   Duck
2. Gorilla
   Jaguar

Gorillas form groups known as troops, which consist of one adult male, or silverback. As the largest primates alive, they weigh over 350 pounds.

1. Squirrel
   Penguin
2. Bear
   Killer whale

These small to medium-sized rodents consume foods high in fats, carbohydrates and protein. Squirrels have a gestation period of 3 to 6 weeks.

1. Chinchilla
   Dingo
2. Panda
   Ocelot

This Australian-native dog weighs up to 43 pounds when fully grown. A dingo's diet includes other animals, such as lizards and rodents, as well as fruits and plants.

1. Wildebeest
   Gecko
2. Puffer fish
   Tapir

Wildebeests are a kind of antelope that belong to the same family as cattle, goats and many even-toed and horned ungulates. There are two main species, which researchers believe diverted over a million years ago.

1. Hedgehog
   Koala
2. Kangaroo
   Stingray

When hunting prey, hedgehogs heavily depend on their sense of smell and hearing. Although none are native to the Americas, there are 17 extant species of hedgehogs found around the world.

1. Chinchilla
   Ocelot
2. Donkey
   Jaguar

Donkeys have been utilized as working animals for nearly 5,000 years. A female donkey is referred to as jenny, and a male is called a jack.

1. Polar bear
   Hippo
2. Skunk
   Killer whale

The word hippopotamus is derived from the ancient Greek word meaning "river horse." Hippos are the third-largest land mammals on Earth.

1. Tapir
   Tiger
2. Bear
   Tortoise

A tiger's most distinctive feature is its dark vertical stripes on its red-orange fur. This popular cat species appear in folklore as well as modern films.

1. Beaver
   Penguin
2. Octopus
   Kangaroo

This semi-aquatic rodent is a notable builder of canals, dams and lodges. They are considered the world's second largest rodent.

1. Puffer fish
   Zebra
2. Panda
   Jaguar

A distinguishing attribute of zebras is their black and white stripes. Female zebras develop faster than males, with the males not being able to breed until age five or six.

1. Caiman
   Octopus
2. Panda
   Armadillo

An armadillo is known for its leathery armor shell. There are 20 existing species of armadillos, and all are native to the Americas.

1. Anteater
   Koala
2. Tortoise
   Killer whale

As its name suggests, an anteater consumes ants as well as termites. Its tongue is able to extend farther than the length of its head.

1. Bear
   Caiman
2. Hyena
   Tapir

Although they are usually compared to dogs, hyenas are considered to be more cat-like in nature. These social animals live in groups called clans.

1. Ocelot
   Stingray
2. Chinchilla
   Camel

Recognized by the humps on their backs, camels are very domesticated animals. There are three extant species of camels.

1. Skunk
   Octopus
2. Coyote
   Penguin

Coyotes are native to North America and can grow to a weight of around 40 pounds. They have a top speed of 43 miles per hour and possess a good sense of smell and vision.

1. Puffer fish
   Bear
2. Antelope
   Tapir

An antelope can live up to 20 years, something that is usually hard to measure because these creatures are hunted so often in the wild. Impalas are known to reach their late teens.