Weirdest Animals in the World 2023 - Top 10 (That Actually Exist)
by Subhashree M
Updated Mar 28, 2023
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Weirdest Animals in the World 2023
Animals belong to the biological kingdom Animalia and are multicellular, eukaryotic organisms. They generally consume organic matter, breathe oxygen, move, reproduce sexually, and develop from a hollow sphere of cells known as a blastula during embryonic development. While over 1.5 million animal species have been described (with about 1 million being insects), experts estimate that the total number of animal species is over 7 million. Animals can range in size from 8.5 micrometres (0.00033 in) to 33.6 meters (110 ft), and they have complex relationships with each other and their surroundings, resulting in intricate food webs. Zoology is the scientific study of animals. The majority of living animal species are Bilateria, a group whose members have a bilaterally symmetrical body plan. The Bilateria contain the protostomes, including arthropods, nematodes, mollusks, annelids, and flatworms, as well as the deuterostomes, which include the weirdest, echinoderms and chordates, including vertebrates. Early life forms that are thought to be animals were present in the late Precambrian Ediacaran biota. During the Cambrian explosion that began approximately 539 million years ago, many modern animal phyla became well-established as marine species in the fossil record.
Top Ten Weirdest Animals in the World
S.No
Weirdest Animals
1
Platypus
2
Komondor Dog
3
Frill-necked lizard
4
Echidnas
5
Aye-aye
6
Axolotl
7
Hairy frog
8
Pangolin
9
Okapi
10
Sponge
Top 10 Strange Animals on Earth
1. Platypus
The platypus, an Australian animal, is a unique and distinct mammal known as a monotreme. Along with echidnas, they are part of a separate order of mammals. The Platypus’s strange appearance initially caused European naturalists and scientists to believe it was a hoax. This creature is well-adapted to a semi-aquatic lifestyle, with dense waterproof fur coating its sleek body and broad, flat tail, making it ideal for use in cold environments. Its hind feet, partially webbed as rudders, enable it to navigate through water. Its characteristic bill houses ear holes and eyes that close when diving, and fat reserves are stored in its tail, which is also utilized for digging and movement. Platypuses have horny spurs on their ankles that connect to a gland in their upper legs, making them one of the few poisonous animals in the world. They prefer coarser bottom materials when feeding and stay in burrows on the banks of streams, rivers, or ponds when not hunting for food. Their short limbs, webbed feet, streamlined body, and dense dark brown to reddish brown fur are distinctive features. The Platypus belongs to the Animalia kingdom, Chordata phylum, Mammalia class, Monotremata order, and Ornithorhynichidae family, with the species name O. anatinus.
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2. Komondor Dog
The Hungarian Komondor dog is another peculiar animal that stands out. Their distinctive white coats with white tassels give them a Rastafarian dreadlock appearance. Despite not having the massive size and bulky build of their Hungarian counterparts, the Komondor has an imposing presence because of their unique coat. With most of its facial features covered by hair, the dog's medium-sized head gives it a mutt-like appearance. Its torso is muscular, and the tail is straight. Racka sheep from Hungary share similar floppy mop-like coats that shield them from predators and harsh weather, and the dog's white coat allows it to blend in with flocks of sheep. The puppy's fluffy coat starts to mat between the ages of eight and ten months.Bred to protect herds, the Komondor is naturally distrustful of strangers and protective of its kind. While it makes a loyal friend and guard dog for humans, its independent thought processes can be a double-edged sword due to its early training in open fields where it had to make decisions for the good of the flock. Despite its intelligence and great sense of security, the Komondor may not be the best choice for many households. One of its distinguishing features is its floppy ears, which are natural.
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3. Frill-necked lizard
“Frill-necked lizards,” “frilled dragons,” and “frizzy-necked agamas” (Chlamydosaurus kingii) are all terms used to refer to agamid lizards such as the frilled lizard, which are only found in a particular region of Australia and New Guinea. The genus Chlamydosaurus includes only one species. The creature is named after the large frills that surround its neck, which are typically folded against its body. C. kingii is primarily arboreal and feeds mainly on insects and small animals like flies. While it is uncommon for frill-necked lizards, or “frillies,” to consume plants, it is not unheard of. To achieve a mottled, tree bark-like effect, brown or grey hues blended with darker spots and patches can be used. Since colors vary based on the lizard’s surroundings, there is no universal shade. Lizards living in dry, clay-filled environments tend to display a range of oranges, reds, and browns, while those living in wetter, more tropical environments tend to exhibit darker browns, greys, and greens. These colors are a type of camouflage that is tailored to their surroundings. The most distinctive feature of these creatures is the ruff of skin that covers their heads and necks, which is supported by long cartilage spines that attach to the jaw bones.
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4. Echidnas
The Tachyglossidae family includes quill-covered monotremes, such as the echidna, which is also known as the spiny anteater. Together with the platypus, the echidna is one of only four existing species of egg-laying mammals and a member of the Monotremata order. Despite being called the spiny anteater, echidnas are not related to true anteaters of the Americas, who feed primarily on ant colonies and termites. Indigenous to Australia and New Guinea, echidnas first appeared on the scene between 20 and 50 million years ago, evolving from aquatic predecessors. Echidnas require protection from excessive temperatures and often seek refuge in caves, fissures, underbrush, roots, and other debris. They may also use the burrows of rabbits and wombats to hide. In the wild, a single echidna has a vast territory shared with several others. The classification of echidnas is as follows: Kingdom Animalia, Phylum Chordata, Class Mammalia, Order Monotremata, and Family Tachyglossidae.
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5. Aye-aye
Aye-aye is one of the most repulsive animals on the planet. This tiny monkey is also one of the most fascinating. A 14 to 17-inch-long species with a long tail found only in Madagascar. With whitish guard hairs, it has long, wiry hairs ranging from grey to black on its body.However, its teeth are constantly growing like those of a rodent. Like bats and squirrels, the aye-aye uses echolocation to find its way around and can scale trees headfirst. It has large, glaring orange or tan eyes that are spherical. It also has a third finger to probe into holes it has dug with its teeth and grab grubs out of those holes.People in the area don’t like an endangered species because they think it’s a demon and will kill it at any chance.Despite their difficulty in keeping, Aye-ayes can be found in zoos all over the world. Some include Cincinnati, Philadelphia, and the Bristol Zoo in the UK.Kingdom: Animalia Phylum: Chordota,Class: Mammalia,Order: Primates,Suborder: Strepsirrhini,Superfamily: Lemuroidea Family: Daubentonidae,Species : Daubentonia.
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6. Axolotl
The axolotl is a species discovered in Lake Xochimilco, as well as other Mexican lakes. Unlike other amphibians, axolotls don't undergo metamorphosis to become adults and instead remain in the water as gilled creatures. They are only found in the freshwater lakes of Xochimilco and Chalco in the valley of Mexico, with Lake Chalco having been drained due to flood control efforts. The temperature in Xochimilco usually doesn't exceed 20 degrees Celsius and can drop to as low as 6-7 degrees Celsius during winter. Surveys conducted in 1998, 2003, and 2008 found 6,000, 1,000, and 100 axolotls per square kilometer in Lake Xochimilco. While a four-month-long search in 2013 was unsuccessful, two wild axolotls were found in a canal network that flows from Xochimilco to the city in less than a month. The rapid expansion of Mexico City has caused significant damage to the natural environment, with the axolotl now classified as threatened according to the IUCN's Red List of endangered species. Kingdom: Animalia, Phylum: Chordata, Class: Amphibia, Order: Urodela, Family: Ambystomatidae, Species: A. mexicanum.
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7. Hairy frog
Most amphibians and reptiles do not have hair or fur, but there are some exceptions such as the hairy frog, also known as the Wolverine or "nightmare frog." During reproduction, these frogs develop hair-like structures on their thighs and sides, despite being only 4 to 5 inches long. These structures are not actually hair, but rather dermal papillae with arteries that help the frog absorb more oxygen, similar to the gills of a tadpole. The male frog needs extra oxygen to guard his mate's eggs after they are laid. In addition to these structures, the hairy frog has retractable claws resembling those of a wolverine. The claws are made of bone and can only be extended if the frog breaks its own toe bones and allows the claws to pierce through the skin.
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8. Pangolin
Pangolins, also known as scaly anteaters, are an unusual and fascinating group of mammals . They belong to the genus Pholidota, which is the only extant family of the order Pholidota. Pangolins are further classified into three genera: Manis, Phataginus, and Smutsia. While the latter two genera are found only in sub-Saharan Africa, Manis has eight species distributed across Asia and Africa. These creatures are notable for their large, protective keratin scales, which are unlike anything found in other mammals.Pangolins can reach lengths of up to 100 cm (39 in) and typically live in burrows or hollow trees. They are nocturnal animals that hunt for termites and ants, which they catch with their long, sticky tongues. Pangolins are also known for their elaborate mating rituals, which can last up to two years and result in one to three offspring.When born, pangolins have soft scales that gradually harden as they age. This gives them a plate-like appearance that is unique among mammals. Unlike reptile scales, which are made of keratin, pangolin scales are made of a different protein called alpha-keratin. Despite their tough exterior, pangolins are unfortunately threatened by habitat loss and illegal hunting, making them one of the most endangered groups of mammals in the world.
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9. Okapi
The Okapi, a rare artiodactyl mammal, is endangered and found in the northeastern region of the Democratic Republic of the Congo (DRC). Also called the forest giraffe, Congolese giraffe, or zebra giraffe, Okapis have striped markings similar to zebras, but they are more closely related to giraffes. They spend most of their time alone and only come together to mate. All of the plants they consume are indigenous to their region. Despite being diurnal, some Okapis are active at night. Males and females experience estrus and ruts throughout the year, and a single calf is usually born after a gestation period of 440–450 days. Weaning happens at six months for infants that have been receiving solid food since they were three months old. Nurseries for juveniles are kept secret and only utilized when necessary. Okapis belong to the Giraffidae family, which only has two surviving members, the other being giraffes. Kingdom: Animalia, Phylum: Chordata, Class: Mammalia, Order: Artiodactyla, Family: Giraffidae, Genus: Okapia, Species: O. Johnstone.
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10. Sponge
The sponge, a marine invertebrate found in oceans, lakes, and seas worldwide, bears resemblance to a plant but is, in fact, a marine creature. Despite its appearance, the sponge cannot be classified as a plant due to its alien-like features. This animal lacks a digestive system and is made up of channels and holes containing specialized cells. The creature does not have a nervous system or brain, nor does it possess any internal organs. Unlike humans, it does not have a system for moving blood around its body. Instead, it relies on ocean currents to deliver food, and oxygen, and remove waste, as it is an omnivore with a sedentary lifestyle.Approximately 750 million years ago, sponges diverged from their common ancestor with the rest of the animal kingdom. Spongiology, the study of sponges, is a relatively new field. One distinguishing feature of the sponge is its surface pores, and they live in colonies.
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Strangest Animals in the World
S.No
Strange Animals
1
Frill-necked lizard
2
Blobfish
3
Goblin shark
4
Komondor Dog
5
Echidna
6
Aye-aye
7
Axolotl
8
Platypus
9
Dumbo octopus
10
Sloth
Which is the Weirdest Animal in the World?
The Platypus, also known as the duck-billed platypus, is a semi-aquatic, nocturnal, and venomous egg-laying mammal that is endemic to eastern Australia, including Tasmania. With almost 40,000 electroreceptors, similar to bats and sharks, it has evolved electroreception to help locate prey with remarkable accuracy. Despite being only around 50 centimeters in length, this unique creature is the sole representative of its family and genus for scientific classification in the world. One of the most remarkable features of the platypus is that it is one of the few mammals that lay eggs instead of giving birth to live young. The females have two ovaries but only lay eggs from one of them, which is a rare trait among mammals. The platypus is also equipped with electroreceptors in its bill, which allows it to detect the electric fields created by the movements of its prey in the water. It feeds on small invertebrates, such as insects, crustaceans, and worms, which it finds by using its electroreceptors to detect their movements in the water.
Weirdest Animals in the World 2023-FAQ
It's subjective to determine which animal is the weirdest, as there are so many strange and unique creatures out there. However, some contenders include the Aye-aye, the Platypus, the Blobfish, the Axolotl, and the Narwhal.
An animal can be considered weird for many reasons, such as their physical appearance, strange behaviors, or unique adaptations to their environment.
The Blobfish is a deep-sea fish that has gained fame for its bizarre appearance. It has a gelatinous, almost shapeless body and a distinctive, droopy face.
The Aye-aye is a long-fingered lemur native to Madagascar that has a distinctive thin middle finger, which it uses to extract grubs from trees. It is also one of the few mammals that lay eggs.
Platypuses are not suitable pets, as they require specialized care and are protected by law in their native habitat of Australia.