In this list I am talking about physical ugliness, not internal, so don’t even bother mentioning your most hated left or right wing politician or celebrity in the comments (I know you want to). The list does not include insects – they are a whole other level of ugliness! So, from the least ugly to the most revolting, natures 10 ugliest creatures.
10. Mata Mata
The mata mata is a freshwater turtle found predominantly in South America, notably in the Amazon and Orinoco basins. The animal’s peculiar physical aspect distinguishes it from other members of its order. It is an animal highly skilled in hunting techniques. French naturalist, Pierre Barrère described it thus:
“large land turtle with spiky and ridged scales”. The mata mata is quite visually distinctive: its head is triangular, large, and extremely flattened, with many tubercles and flaps of skin, most notably a ‘horn’ on the nose. There are two barbels on the chin and two additional filamentous barbels at the jaw. The snout is long and tubular. The upper jaw is neither hooked nor notched.
9. Horseshoe Bat
Horseshoe bats (the Rhinolophidae family) are a large family of bats including approximately 130 species grouped in 10 genera. All rhinolophids have leaf-like protuberances on their noses. In rhinolophines species, these take the shape of a horseshoe; in hipposiderine, they are leaf- or spear-like. They emit echolocation calls through these structures, which may serve to focus the sound. Most rhinolophids are dull brown or reddish brown in color. They vary in size from small to moderately large.
8. Star Nosed Mole
The Star-nosed Mole is a small North American mole found in eastern Canada and the north-eastern United States. It lives in wet lowland areas and eats small invertebrates, aquatic insects, worms and molluscs. It is a good swimmer and can forage along the bottoms of streams and ponds. Like other moles, this animal digs shallow surface tunnels for foraging; often, these tunnels exit underwater. It is active day and night and remains active in winter, when it has been observed tunnelling through the snow and swimming in ice-covered streams.
7. Sloth
Sloths are medium-sized mammals that live in Central and South America. Sloths are omnivores. They may eat insects, small lizards and carrion, but their diet consists mostly of buds, tender shoots, and leaves. Sloth fur also exhibits specialized functions: the outer hairs grow in a direction opposite from that of other mammals. In most mammals, hairs grow toward the extremities, but because sloths spend so much time with their legs above their bodies, their hairs grow away from the extremities in order to provide protection from the elements while the sloth hangs upside down.
6. Naked Mole Rat
The Naked Mole Rat, also known as the Sand Puppy, or Desert Mole Rat, is a burrowing rodent native to parts of East Africa. Typical individuals are 8–10 cm long and weigh 30–35 g. Queens are larger and may weigh well over 50 g, the largest reaching 80 g. They are well-adapted for their underground existence. Their eyes are just narrow slits, and consequently their eyesight is poor. However, they are highly adapted to moving underground, and can move backwards as fast as they move forwards. Their large, protruding teeth are used to dig. Their lips are sealed just behind their teeth while digging to avoid filling their mouths with soil. Their legs are thin and short. They have little hair (hence the common name) and wrinkled pink or yellowish skin.
5. Axolotl
The Axolotl (or ajolote) is the best-known of the Mexican neotenic mole salamanders belonging to the Tiger Salamander complex. Larvae of this species fail to undergo metamorphosis, so the adults remain aquatic and gilled. Their heads are wide, and their eyes are lidless. Their limbs are underdeveloped and possess long, thin digits. Axolotls have barely visible vestigial teeth which would have developed during metamorphosis. The primary method of feeding is by suction, during which their rakers interlock to close the gill slits. Axolotls have 4 different colours, 2 naturally occurring colours and 2 mutants. The 2 naturally occurring colours are wildtype (Varying shades of brown usually with spots) and melanoid (black). The 2 mutants colours are leucistic (pale pink with black eyes) and albino (golden, tan or pale pink with pink eyes).
4. tarsier
Tarsiers are prosimian primates of the genus Tarsius. Tarsiers have enormous eyes and long feet. Their feet have extremely elongated tarsus bones, which is how they got their name. They are primarily insectivorous, and catch insects by jumping at them. They are also known to prey on birds and snakes. As they jump from tree to tree, tarsiers can catch even birds in motion. Tarsiers have never formed successful breeding colonies in captivity, and when caged, tarsiers have been known to injure and even kill themselves because of the stress.
3. Hagfish
Despite their name, there is some debate about whether Hagfish are strictly fish, since they belong to a much more primitive lineage than any other group that is commonly defined fish. Hagfish are long, vermiform and can exude copious quantities of a sticky slime or mucus. When captured and held by the tail, they escape by secreting the fibrous slime, which turns into a thick and sticky gel when combined with water, and then cleaning off by tying themselves in an overhand knot which works its way from the head to the tail of the animal, scraping off the slime as it goes. Hagfish have elongated, ‘eel-like’ bodies, and paddle-like tails.
2. Aye-aye
The Aye-aye is a native to Madagascar that combines rodent-like teeth with a long, thin middle finger to fill the same ecological niche as a woodpecker. The Aye-aye is the world’s largest nocturnal primate, and dwells predominantly in forest canopies. The adult Aye-aye has black or dark brown fur covered by white guard hairs at the neck. The tail is bushy and shaped like that of a squirrel. The Aye-aye’s face is also rodent-like, the shape of a raccoon’s, and houses bright, beady, luminous eyes. Its incisors are very large, and grow continuously throughout its lifespan.
1. blobfish
The Blobfish inhabits the deep waters off the coasts of Australia and Tasmania. Due to the inaccessibility of its habitat, it’s rarely seen by humans. Blobfish are found at depths where the pressure is several dozens of times higher than at sea level. To remain buoyant, the flesh of the Blobfish is primarily a gelatinous mass with a density slightly less than water; which allows the fish to float above the sea floor without expending energy on swimming. The relative lack of muscle is not a disadvantage as it primarily swallows edible matter that floats by in front it.
Creature Data courtesy of Wikipedia





























I don't think sloths are all that ugly.
i totally agree with you, sloths are endagered and a literally harmless to people they may get aggressive but that is just people’s fault to annoy them. i certainly think the sloth has a right to be on a website with interesting and calm creatures:)
i’d like to see these creatures in motion..
dalandzadgad: I agree – I would especially like the see the mole rat running backwards!
Oh God… the hagfish and the blobfish are just disgusting…. Actually, I saw a documentary about the first one, you could see people touching the mucus it produces… it nearly made me bring up!
Tarsiers look like cartoons XD
By the way, what happened to the numeration?
Morgaine: thanks for pointing out the error with the numbering – I really must fire my editor!
I actually think the Axolotl is kind of cute. I’ve seen it in a book before. There it was referred to as the “Peter Pan” salamander because they don’t grow up and leave the water.
Jeannie: I can vaguely see how you might think that – maybe if it had fur?
The Naked Mole Rat is so ugly, I can’t even tell whether that is his face or his butt!
Replace the Sloth with the Manatee…
Sloths in their natural state just look like greenish fur. Manatees just look ugly.
The blobfish……….my god…excellent list!! I would like to see this one alive. I mean check out the nose on that thing! It looks like an old man.
Thanks!!
Hannah: haha!
Awww! The sloth is kinda cute. Thats just a bad picture. And DMH: You just wish you were as cute as manatees are. They’re SO adorable! And also sweet and kind. =3 The blobfish picture didn’t work on my computer, but then again I’m kind of glad because I do have that fish thing… =S
I’d do the Hagfish before Rosie O’Donnell.
I’m totally horrified of sloths….it’s the long arms and the slowness they have that scares me.
Dan: at least you will be able to get away if one is chasing you
Sloths really arent ugly. I saw some in panama and up close they are cute.
Well that just my opinion lol.
Wonder if the blobfish tastes good…?
BLOBFISH AREN”T EDDIBLE!
besides they’re to cute to eat.
Sloths! Odd! But excellent winner in the blobfish (I swell with Antipodean pride).
The Washington National Zoo has Naked Mole Rats… they’re in the small marsupial house and are cruelly placed after a whole lot of cute stuff as if to highlight their ugliness.
what about the angler fish?
Ok. I love all of god’s creatures but I will be forced to kill anything that looks like a blobfish.
Don’t kill the adorable blobfish not only are they cute but they are ENDANGERED! Don’t be a poacher!
Definately glad the Aye-aye was here, but why is the Axolotl on the list? its not that bad…at least not as bad as say deep sea anglerfish or even things like the probiscus monkey or banana slug
to be honest ive seen sloths that were kindof cute. baby ones mind you but cute all the same. I couldnt help but laugh when i saw the blob-fish, it almost looks sad to be number one.
Adam W: you should ask jandaman on Top 10 disgusting foods – he has probably eaten some!
Ben: I guess it is the kind of fetus look they have.
gr8flddfn: the Angler Fish is indeed incredibly ugly and warrants a place on the list. Many of those deep sea fish are hideous.
Those last 2 are pretty ugly. Another pic of a blob fish here :
http://www.flickr.com/photos/31547797@N00/50247379/
Andre: wow – just when you thought it couldn’t get worse!
Great list, but Tasmania is a part of Australia.
Patrick: It is – I didn’t say otherwise – but it is an island so it has its own coasts
actually tarsiers are not ugly. it’s just that the picture there is different from what they really look like. they’re actually cute and cuddly
i’ve seen a tarsier! i was scared at first then i tapped it lightly with a stick… lol
Great list! Someone once told me I looked like a sloth… I didn’t think it was a bad thing, guess I’m wrong haha. The Aye-aye looks so ugly it’s cute, or at least it might be in a different picture.
Come on now…
The Aye-aye is just freaking adorable.
I think this guy is the ugliest.
http://www.helenslittlecritters.com/images/ferret14.jpg
Ferrets freak me out.
Mandie: What?! Ferrets are cute!
Is it just me or does the blobfish look like Ziggy?
Here in The Netherlands, I know a zoo, The Noorder Dierenpark in Emmen, that keeps a colony of Naked Mole Rats. They live there in a system of transparent tubes. It’s really funny to watch them. I could sit there all day!
Number 4 and 5 are pretty cute xD
Mandie you have a twisted perspective of what is attractive and what is not! Ferrets are the cutest animal made!
that last one kinda looks my uncle…hi uncle terry!!!!
1… Yuck! 2 … Cute critter. 3… Ew! 4… Freaky! 5 … what the! 6 … Whoah! 7 … Bad picture. 8 … Great! 9… Dunn know, not ugly or cute. 10 … ugly.
Sloths are so cute! I went hiking at night in Costa Rica, and we managed to find 3 sloths hiding in the trees above us. One was a mother and baby sloth.
Blobfish ftw. It has the best name too.
my list is: 10.tarsier 9.hooded seal 8.star-nosed mole 7.catfish 6.naked mole rat 5.goblin shark 4.anglerfish 3.hagfish 2.mata mata(that’s a bad picture) 1.blobfish what was it supposed to be?
at what point do we combine this list with the ugliest celebs?
the tarsier on my list is replaced with the dobsonfly, and could the contributers actually find or take real pictures?
I’m surprised you didn’t include more deep sea creatures.
i am changing mylist 2 scorpion at #1 and since dobsonfly is an insect #11 is now vampire squid
Tarsiers are not ugly! I saw a video of one eating a cricket and its movements, size and the way the eyes make one think it’s perpetually surprised….so cute, my head damn near exploded!
vodie:correct!
And what makes animals “ugly” to you? Because they don’t all look like typical fuzzy cuddly puppies?
Bootlicker, that’s exactly what I thought! It *does* look a lot like Ziggy!
Blobfish… ewwww! Haha. That is honestly very disgusting. lol
blobfish is bull*****! try to search chupacabra. it looks like your mothers ass!hehehehehe
Actually “chupacabra” means, quite literally “goat sucker” or “sucks goats” but it’s prey consists of pretty much *any* small animal (if it exists…which it probably doesn’t). You should go back and brush up on your elementary Spanish, there, “Pedro.”
Euwww.. they are ugly indeed. The Naked Mole Rat should rank the first. The weirdest animal.
*o*
#1 the blob fish reminds me of the cartoon character Ziggy
lol can you see it? Or should I seek some professional help?
oh, nevermind…I see others have seen ziggy in the blob fish. I’m going to cancel my appointment with Dr. Orgstein
Number 4 looks like Aisharya Rai
oh that’s mean.
and Ziggy IS in the blob fish!
what the heck? creepy dude rock out man !
CREEPY i am scarded wa wa wa wa wa wa wa wa
How has nobody even mentioned the star nosed mole!! it is so *beeping* awesome
I think the star nose mole is extraordinary ugly. I never seen animals like that before…