The black flamingo isn't considered a different species from your typical pink flamingo, but it does have a genetic condition that makes it produce more melanin, which in turns makes its feathers much darker.

Tasmanian devils were once abundant throughout Australia, today they are only found on the island of Tasmania, from which they get their name.

Palau’s Jellyfish Lake is so named for the strikingly beautiful golden jellyfish that migrate across its waters daily.

The Christmas Island Red Crab is found nowhere else in the world, but about 120 million crabs live on this small Australian island.

Bee hummingbirds reach an average length of 2.25 inches and weigh just one twentieth of an ounce. If you want to see them you'll have to travel to Cuba, the only place they're natively found.

The goliath frog can reach over 13 inches in length and weigh over seven pounds. The animal can only be found in Cameroon and Equatorial Guinea, where it builds nests that lie adjacent to streams.

The giant kangaroo rat is found on the grasslands of central California, near San Luis Obispo and Fresno. Kangaroo rats are known for their powerful hind legs. They forage seeds and grasses, storing in their cheek pouches, then stashing them in their burrows. The “giant” kangaroo rat is just over a foot long, but they are the largest type of kangaroo rat in the world.

In 1921, the yellow-rumped leaf-eared mouse was discovered living at over 22,000 feet above sea level on the summit of Volcán Llullaillaco in Chile.

The name of this endemic animal is deceiving — the Madagascar flying fox is actually a bat, rather than a fox.

Most of the world’s marsupials live in Australia, including kangaroos and koalas. The Virginia opossum is the only marsupial in North America.

Penguins generally prefer the cold, but Cape Town, South Africa's indigenous African penguin population — the only species of penguin that lives in Africa — likes to soak up the sun.

All species of lemurs are endemic to the African island of Madagascar and its few small neighboring islands.

The orangutan is the only great ape that is endemic to Asia. These furry tree dwellers are only found on the islands of Borneo (in Indonesia) and Sumatra (in Malaysia and Indonesia).

Only one species of seal lives exclusively in freshwater — the Baikal seal. The species is endemic to the massive lake of the same name in Siberia, Russia.

The Democratic Republic of the Congo is home to an estimated 600 mountain gorillas, over half of the global population of just around 1,000 gorillas.

Komodo dragons are found only in eastern Indonesia, specifically on the volcanic islands of Rintja, Padar, Flores, and (unsurprisingly) Komodo.

The platypus is among the most unique mammals in the animal kingdom, known for its beaver-like body, duck-billed mouth, and flippered feet.

The Galápagos archipelago is home to many endemic species, but one of its most famous residents is the Galàpagos tortoise, also called the giant tortoise.

Kiwi are small, flightless birds endemic to New Zealand. They are divided into five species, each of which is found in a different region within the island nation.

Alligators are native to only two countries: America and China. The Chinese alligator tends to be smaller than its American counterpart.