A fisherman in Penghu, Taiwan, recently discovered an unusual, green, jelly-like creature stuck to his fishing rod. The long, slimy thing is believed to be a ribbon worm or nemertea, which usually lives on the sea floor. The planet is full of many weird-looking creatures that, at times, look like alien species. Click through to check out some more unfamiliar beings.

Blobfish

This grumpy-looking, gelatinous creature lives deep in the ocean, where its gooey flesh helps it to remain buoyant. It primarily feeds on edible matter that floats in front of it, like deep-sea crustaceans.

Aye-aye

A native of Madagascar, the aye-aye has a lot in common with woodpeckers. It uses a combination of its rodent-like teeth and a long middle finger to gnaw holes and dig out insects.

Long-eared jerboa

The long-eared jerboa is a nocturnal mouse-like rodent found in China and Mongolia. The only living member of its genus, little is known about the jerboa and it is considered endangered.

Dumbo octopus

Grimpoteuthis or the dumbo octopus is the deepest living of all octopus species. It got its name for its ear-like fins, which loosely resemble those of the Disney character, Dumbo the Flying Elephant.

Loris

Found in the tropical woodlands of Southeast and South Asia, the loris is a solitary, nocturnal forager. Its already fragmented population is further threatened by the fast disappearance of habitat.

Sphynx

The sphynx is a hairless cat developed from selective breeding. Known for its extroverted nature, it displays a high level of energy, intelligence and curiosity. The first Sphynx, named Prune, was born in 1966.

Long-beaked echidna

The echidna is one of two types of mammals that lay eggs — the other is the platypus. Found in Australia and New Guinea, forest clearing and over-hunting threaten the already small echidna population.

Yeti crab

The Yeti crab or Kiwa hirsuta was discovered in 2005 near Easter Island in the South Pacific. Living in the depths of the ocean, the furry crab does not have eyes and cultivates gardens of bacteria on its claws for food.

Red panda

The shy, solitary red panda is found in the mountains of Nepal and China. A relative of the giant panda, it is slightly larger than a domestic cat. It uses its bushy ringed tail as a wraparound blanket in the chilly mountains.

Tarsier

Measuring just over a half an inch (16 millimeters) in diameter, a tarsier’s eyes are as big as its brain. Once found across North America, Europe and Asia, the tarsier population is now restricted to the forests of Southeast Asia.

Sun bear

The smallest member of the bear family, the sun bear is reclusive, nocturnal and found in Southeast Asia. It has an exceptionally long tongue to extract honey from beehives. Due to its stocky built and short muzzle, it’s also called ‘dog bear.’

Axolotl

Also known as the ‘Mexican Walking Fish,’ the axolotl is actually an amphibian. Found in just two lakes in Central Mexico, it has the rare trait of retaining its larval features throughout its adult life.

Komondor

The Komondor is a Hungarian sheepdog, descended from Tibetan dogs. While a Komondor puppy is born with a soft, wavy coat, the coarse outer coat develops tassels as the dog matures. The cord-like coat helps the dog blend with his flock and protects him from extreme temperatures and beasts of prey.

Leafy seadragon

The leafy seadragon is covered with leaf-like appendages, making for excellent camouflage. Found only in Australia, it has been protected by the Australian government after its numbers shrank dramatically in the ’90s due to pollution, habitat loss and poaching.

Shoebill

Owner of an extraordinarily large beak, the shoebill is found in the tropical swamps of central tropical Africa. The species was only discovered in the 19th century, and its population is considered vulnerable due to rapid habitat loss and rampant hunting.

Pygmy marmoset

Native to the Amazon Basin, the pygmy marmoset is the smallest monkey in the world — weighing just over 3.5 ounces (100 grams). The animal has a specialized diet of tree gum.

Viperfish

True to its appearance, the viperfish is a fierce deep-sea predator that uses a bioluminescent bait, dangling from its back, to lure its prey — usually crustaceans and other small fish. The tiny fish can live up to 20 to 40 years, but it cannot survive in captivity.

Saiga

The saiga is a critically endangered antelope that originally inhabited a vast area of the Eurasian steppe zone. Today, it is found only in pockets in Kazakhstan and Mongolia. The saiga’s unusual nose filters dust from the air and keeps it cool during the summer. During the winter, its nose heats up frigid air before it reaches the lungs.

Frill-necked lizard

A member of the dragon family, the frill-necked lizard got its name because of the large ruff of skin around its neck, which it unfurls when feeling threatened. It is found mainly in northern Australia and southern New Guinea.

Proboscis monkey

Endemic to the jungles of Borneo, the proboscis monkey is one of the largest monkeys found in Asia. The male monkey uses its fleshy, pendulous nose to attract mates. Excellent swimmers, the proboscis monkey has evolved with webbed feet and hands.