8 Most Unique Animals in the World

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Most unique animals in the world. Let's take a look at some features of animal species that are stunning, unique & extremely helpful for their survival in the wilderness.

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Number 8 Hawksbill Sea Turtle
The hawksbill sea turtle has several features that distinguish it from other sea turtles and one that makes it unique among all other reptile species. Adults weigh about 180 pounds, on average, and measure around 3 feet in length. Its shell features an irregular pattern of dark and light streaks, on an amber background. One of this creature’s most distinguishable features is the thick plates, called ‘scutes’, which make up its sturdy shell. The turtle gets its common name from its beak-like mouth, which is more hooked and pronounced than in other species. Their forelimbs also have two claws on each flipper. So far, the hawksbill sea turtle is the only known reptile to exhibit biofluorescence. The feature was discovered by marine biologist David Gruber, on a turtle he filmed in the Solomon Islands. Filmed under a blue light, the turtle was glowing in stunning patterns of neon red and green.
Number 7 Tarsier
Tarsiers are the only primates in the Tarsiidae family. Found in the islands of Southeast Asia, these creatures are often difficult to spot because they’re rarely over 16-inches tall. Tarsiers also have elongated fingers, with the third one being roughly the same length as their upper arm. This structure makes them perfectly adapted for vertical leaping and climbing, which are necessary activities in their largely arboreal life. Despite being one of the smallest primates, tarsiers have enormous eyes, with an average diameter of 0.63 inches. In some cases, tarsiers’ eyes are larger than their entire brain. Aside from their strange appearance, tarsiers also have a unique dental formula and they’re the only known primate species that’s entirely carnivorous. As ambush predators, they mainly feed on insects but are also known to prey on snakes, birds, bats and lizards.
Number 6 Portuguese
Named after an 18th century armed sailing ship, the Portuguese is a truly fascinating creature. It might look like a jellyfish but it’s actually a siphonophore, a type of marine animal composed of other individuals. Whereas a true jellyfish is a single multicellular organism, the man o’ war is a colonial organism. It’s made up of several individuals from the same species, called polyps or zooids. Their physiology is so integrated that it has developed into a symbiotic relationship.
Number 5 Wallace’s Flying Frog
Gliding flight has been observed independently in several species of frogs, as an evolutionary adaptation to life in trees. One of the first in which this feature was recorded is Rhacophorus nigropalmatus, the largest and best known flying frog. It’s commonly referred to as Wallace’s flying frog, after Alfred Russel Wallace, the naturalist who first reported on it. This brightly-colored frog has long limbs with enlarged feet and toes, which are webbed up to the tips.
Number 4 Icefish
Adult icefish also lack myoglobin, the oxygen-binding protein used in muscles.
Number 3 Axolotl
The axolotl, commonly known as the Mexican walking fish. This creature is actually a salamander, unique among amphibians because it doesn’t undergo metamorphosis to reach adulthood. Instead of growing lungs and adapting to life on land, it remains aquatic and gilled. It heals itself without scarring and is capable of regenerating entire lost appendages, including some less-vital parts of its brain. This process usually takes a few months. The axolotl can also readily accept transplants from other individuals, which include parts of the brain and the eyes. Their incredible healing ability has made them a model for the development of limbs in vertebrates and the main focus of scientific research into regeneration.
Number 2 Platypus
In the entire animal kingdom, there’s no animal quite like Australia’s duckbilled platypus. Because of its unusual appearance, some 19th century European naturalists thought the creature to be an elaborate hoax when they first saw sketches of it. Its body is covered in dense, brown, waterproof fur the texture of which resembles mole’s fur. It features a layer that traps insulating air and keeps its body warm. The platypus is a semiaquatic animal and an excellent swimmer, thanks to its webbed feet. Unlike most other mammals, the platypus has eyes with double cones, which are similar to those of Pacific hagfish.
Number 1 Pangolin
Their physical appearance consists of plate-like scales which are made out of keratin, the same material as our fingernails. The pine cone is one of the closest things in nature to the appearance of a pangolin.