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15 Creatures That Look Like They are from Another Planet

Axolotl.
Axolotl. Image via Depositphotos.

Nature has a way of surprising us with its myriad forms and adaptations. From deep in the ocean to remote forests, life on Earth sometimes takes shapes so extraordinary that it’s as though they’ve leapt from the pages of science fiction. Here, we explore 15 creatures whose unique characteristics make them appear as if they’ve traveled here from another world. Strap in for a journey across our planet filled with fascinating, otherworldly beings that truly defy expectations.

Japanese Spider Crab

A close-up view of a Japanese Spider Crab, showcasing its long, red legs and large body, set against a deep blue ocean floor.
The Japanese Spider Crab, known for its immense size and long limbs, is one of the largest arthropods in the ocean. Image via Unsplash

The Japanese spider crab, with its awe-inspiring leg span of up to 12 feet, holds the title as the world’s largest arthropod. Found in the Pacific Ocean surrounding Japan, these crabs resemble monstrous sea creatures from alien worlds. Their long legs and orange and white patterned exoskeleton provide natural camouflage against the seafloor, allowing them to evade predators. Despite their fearsome appearance, they are generally scavengers, preferring to feed on plant matter and dead animals.

Axolotl

Charming axolotl smiling underwater, showcasing its unique features in a natural setting.
“Axolotls” image by Artem Lysenko via Pexels

The axolotl is a type of amphibian found only in the wild in Mexico’s Lake Xochimilco. Unlike other amphibians, axolotls retain their larval features throughout their lives, a trait known as neoteny. Perhaps their most intriguing feature is their ability to regenerate lost body parts, including limbs, which contributes to their near-mythical status. With frilly gills extending from their heads and perpetual smiles, axolotls have captivated biologists and pet enthusiasts alike.

Leafy Sea Dragon

Leafy Sea Dragon-Phycodurus eques
Sylke Rohrlach from Sydney, CC BY-SA 2.0 https://creativecommons.org/licenses/by-sa/2.0, via Wikimedia Commons

As its name suggests, the leafy sea dragon is a master of disguise. Native to the waters off southern Australia, this fish is adorned with elongated, leaf-like protrusions that provide exceptional camouflage among seaweed and kelp. Floating gracefully through ocean waters, the leafy sea dragon’s slow, deliberate movements are almost ethereal, making it a marvel of marine evolution worthy of an alien world.

Pink Fairy Armadillo

Pink fairy Armadillo prefer dry soil and will be found in warm
Pink fairy armadillos (or pichiciegos) are found in the warm sandy plains of Argentina. Image via Cliff, CC BY 2.0 https://creativecommons.org/licenses/by/2.0, via Wikimedia Commons

This diminutive creature lives beneath the dry plains of Argentina. With its soft, pale pink shell and a size that rarely exceeds six inches, the pink fairy armadillo is truly a sight to behold. It spends most of its life underground, burrowing through the earth with a flexible, trumpet-shaped shell. Its unique appearance and secretive habits make it one of Earth’s most enigmatic creatures.

Mantis Shrimp

Mantis Shrimp
Mantis Shrimp. Image via Openverse.

Renowned for its extraordinary visual capabilities and powerful claws, the mantis shrimp is a colorful denizen of tropical and subtropical waters. What sets it apart is its complex compound eyes, capable of detecting polarized light and discerning colors beyond the capability of human vision. Its claws strike with the speed of a bullet, used to hunt prey and defend against predators. These remarkable characteristics make the mantis shrimp seem almost alien in origin.

Shoebill Stork

white and gray bird on brown tree branch during daytime
Shoebill Stork habitat. Image via Unsplash

The shoebill stork, native to the swamps of East Africa, earns its name from its massive, shoe-shaped bill. Standing up to five feet tall, the shoebill boasts a prehistoric appearance with a slow-motion hunting technique that adds to its otherworldly allure. It remains eerily still for long periods, waiting to ambush fish and frogs in shallow waters. Its unusual look and behavior make it seem as if it stepped straight out of a time machine.

Saiga Antelope

brown deer on green grass field during daytime
Saiga Antelope. Image via Unsplash

With a large, flexible snout adapted for filtering dust and cooling the animal’s blood during hot days, the saiga antelope is a peculiar species found in the steppes of Central Asia. This unique adaptation gives the antelope a bizarre, cartoonish appearance, unlike any other terrestrial animal. Once abundant, saiga populations have significantly dwindled, making conservation efforts critical to preserving this singular species.

Tardigrade

Tardigrade (Water Bear)
Tardigrade (Water Bear). Image by rukanoga via Depositphotos

Tardigrades, or “water bears,” are microscopic creatures renowned for their resilience. Found in diverse environments from deserts to the deep sea, they can survive extreme temperatures, radiation, and even the vacuum of space. They are capable of entering a cryptobiotic state, suspending all biological activity when conditions are unfavorable. Their incredible adaptability might make them Earth’s ambassadors for interstellar life.

Umbonia Spinosa

Treehopper
Treehopper. Photo by Captures of mine, via Unsplash

Also known as thorn bugs, Umbonia spinosa features a long, pointed projection on its back, resembling a thorn or splintered branch. Native to the forests of South America, these insects use their horn-like appendage for defense, blending seamlessly with their surroundings. Their unique appearance is a testament to nature’s inventiveness and the wonders still waiting to be discovered in unexplored habitats.

Glass Frog

glass frog
The Glass Frog sitting on a leaf with the green shining through. Image by DHDeposit18 via Depositphotos.

Glass frogs, native to the rainforests of Central and South America, possess translucent skin through which their internal organs can be seen. This uncanny feature gives them a ghostly appearance, camouflaging them against foliage as they cling to leaves. This transparency serves as an evolutionary advantage, keeping them hidden from predators under the moonlit canopy.

Vampire Squid

a close up of a squid in the dark
Vampire Squid. Image via Pexels

Residing in the deep ocean, the vampire squid’s name and appearance evoke a sense of dark mystery. Despite its fearsome name, it is neither a squid nor an octopus but a distinct species with its own classification. Vampire squids are master deep-sea survivors, using bioluminescence to confuse predators and a webbed cloak that it can invert over itself, creating an eerie silhouette.

Frilled Shark

Frilled Shark
OpenCage, CC BY-SA 2.5 https://creativecommons.org/licenses/by-sa/2.5 , via Wikimedia Commons

Often referred to as a “living fossil,” the frilled shark is a relic of the deep, seldom seen by humans. Its eel-like body, fringed with gill slits reminiscent of a dinosaur’s mane, swims the depths with a serpentine grace. Its mouth, lined with rows of sharp teeth, is ready to seize cephalopods and fish in the gloom of the ocean floor. The frilled shark’s ancient lineage and peculiar features elevate its status as a creature seemingly from another era.

Yeti Crab

brown and white crab photography
Yeti Crab. Image via Unsplash.

Discovered in the hydrothermal vents of the Pacific, the yeti crab is a sight to behold with its furry arms and pallid, ghostly appearance. The “hair” on its pincers is colonized by bacteria, which suggests a mutualistic relationship aiding its survival in the harsh, chemical-laden environment. This form of adaptation exemplifies how life can evolve in ways that appear outright extraterrestrial.

Blue Dragon

Blue dragonfly on a twig and eats caught cicada
Blue dragonfly sitting on a twig and eats caught cicada. Image by AlexanderSidyako via Depositphotos.

The blue dragon, or Glaucus atlanticus, is a type of sea slug with a striking and colorful appearance. Found drifting on the surface of the oceans, this small but startling creature possesses cerulean hues and wing-like structures that resemble a miniature dragon. It feeds on venomous prey like the Portuguese man o’ war, storing toxins and deploying them against its own predators, embodying both beauty and danger.

Star-Nosed Mole

animal, mole, garden, nature, meadow, mole pile, blind, budding, mole, mole, mole, mole, mole
Star-Nosed Mole. Image via Unsplash

The star-nosed mole is easily recognizable by the 22 pink, fleshy appendages surrounding its snout. This bizarre mammal dwells in the wet lowlands of North America. It uses its sensitive nose with over 100,000 nerve fibers to detect prey with astonishing speed, being one of the fastest hunters in the animal kingdom. The unique adaptation gives the star-nosed mole an appearance as if engineered by an alien designer.

Conclusion

Star nosed mole
Their noses are hairless. Image via US National Parks Service, Public domain, via Wikimedia Commons.

Earth is teeming with life in forms that defy imagination. From the deepest abysses to the densest forests, creatures adapt in extraordinary ways to thrive in their respective ecosystems. These evolutionary marvels remind us that even on our planet, life writes a story that can rival the most compelling tales of alien worlds. With each new discovery, we come to appreciate the biodiversity of our own backyard—a place as enigmatic and enthralling as any other planet.