While the creatures that scare humans most are usually large, it is the smallest that are probably the most dangerous and painful. While we can be thankful that most of us will not experience the suffering caused by the creatures on this list, many people do every year. This is not a list of the most deadly, but rather the most dangerous or painful creatures. The list excludes creatures from the sea.
Ticks are second only to Mosquitoes for their disease spreading properties. Ticks feed on blood and attach themselves to other animals (including humans). They can be difficult to remove and removal must be done carefully as they can leave part of their head behind causing serious infection. According to Wikipedia, hard ticks can transmit human diseases such as Lyme disease, Rocky Mountain spotted fever, tularemia, equine encephalitis, Colorado tick fever, African Tick Bite Fever, and several forms of ehrlichiosis.
Tarantula hawks are named for the fact that they hunt tarantulas as food for their larvae. It’s sting is rated as one of the most painful in the world (though not as painful as the bullet ant). One researcher described the sting as causing “[...] immediate, excruciating pain that simply shuts down one’s ability to do anything, except, perhaps, scream. Mental discipline simply does not work in these situations.” The Tarantula Hawk is the official state insect of New Mexico.
A large biting fly fom Africa that feeds on the blood of vertebrate animals. They are known to cause Sleeping Sickness in humans and Nagana in cattle. Sleeping sickness is a parasitic disease in people and animals that is caused by Trypanosoma, a protozoa transmitted by the tsetse fly. The symptoms for sleeping sickness begin with fever and headache then a swell on the back of the neck. Afterwards, the victim may experience daytime slumber and insomnia. It could lead to death afterwards.
Also called killer bees, are descendants of 26 Tanzanian queen bees that bred with other species after they were accidentally released from a hive in Brazil. What makes the bees deadly is their defensive nature and tendency to swarm. Also, they tend to follow victims even when already far from the hive. This aggressiveness when attacking potential threats ensure a very painful death for the victim. The venom that they secrete, however, is just as potent as a honey bee’s.
A species of scorpion that is highly dangerous because of its venom. The venom is actually a powerful mixture of neurotoxins. Although, the poison would not kill a healthy adult, it could be fatal to kids and the elderly. Ironically, a component of the venom (peptide chlorotoxin) has the potential to cure human brain tumors while the other toxins may help against diabetes.
One of the most well-known spiders, especially because its venom could be fatal to humans. The venom is said to be more potent than that of rattlesnakes, however, their size and the amount secreted reduce its effectiveness. Both male and female have an hourglass shaped marking underneath their abdomen. The females are relatively larger than the males and contrary to popular belief, the females rarely eat the males after mating.
While not dangerous on their own, these ants live and travel in swarms. They are found mostly in Africa and Asia and they build temporary anthills while traveling. The greatest risk these ants pose to humans is when they are swarming through homes. When food supplies are low, these ants will swarm in sizes of up to 50 million single ants. There are reports of humans – usually young or infirm being killed through suffocation (the ants will often enter the lungs of the person) and be entirely consumed. Their mandibles are so strong that in some parts of Africa they are used individually as emergency sutures when medical supplies are not available.
A bite from a Bullet ant will not kill you, but you will never forget it. The Bullet ant (thus named because a bite feels like being shot) inflicts the most painful bite of any creature known to man. It is number one on the Schmidt Sting Pain Index where it is described as causing “waves of burning, throbbing, all-consuming pain that continues unabated for up to 24 hours”.
Deemed the most dangerous creature on Earth. This mosquito causes more than 300 million cases of malaria annually, which results in between 1 to 3 million deaths. They can also carry dengue, elephantiasis, and yellow fever. They are usually active during the nightime so one way to protect yourself is to apply insect-repellents and wear longer sleeves.
Contributor: patholdenmd



![Africanbee1[1]](http://listverse.files.wordpress.com/2008/05/africanbee11-tm.jpg?w=350&h=262)

























Just thought I’d mention it’s just the Female anopholes mosquitos because the female is the only one that bites. (science nerd from parasitology) =D
Interresting…
I can’t believe my brother-in-law didn’t make the list…
Quite a collection of nasty creatures
OOO A creepy crawly list. Now I will go around all day thinking there are bugs on me. Ewwww.
Nice job on the list. One question: Is the list in no particular order since it is not named TOP 9 Small But Incredibly Dangerous Creatures?
Army ants AKA African Driver ants. Vicious little *****s, I’d have to move if they decided to invade my house, just let them eat everything, it’s cheaper than paying hospital bills.
And Anything parasitic creeps me out. I don’t even like being reminded that Humans are swarming with them. “Get it off me, Get it off me!!!”
Why insects and Arachnids alone? I’m sure there are mammals and reptiles that could qualify.
Eww, I hate insects.
I knew the mosquito would be nr one.
JwJwBean: Top Nine would cause less of a debate than just a simple nine. There have been too many Overly Heated debates recently and this, I’m sure would be no exception.
black widows just look so evil..I’ve stomped a few before in my old house ..silly australia and its deadly creatures.
“The Tarantula Hawk is the official state insect of New Mexico.”
I am never moving to New Mexico.
An arachnid called the Deathstalker? Dangerous? I’m sure it’s lovely really.
Nice list. I love stuff like this. And watching ants devour bigger insects on the Discovery channel.
Iv been biten by a bullet Ant and i cant even begin to describe how painful it was. At the time i didnt know what species it was but ill never forget it.
I stay away fom most ants now!
Ticks…Why’d it have to be ticks”
They’re probably the thing I get most freaked about, esp. since we camp/go in the woods so often.
My grandmother was bit by a tick, and it lead to infection that nearly took her.
Also, I have a distant relative who was bit by a mosquito and got encephalitis, which caused severe brain damage. She’s been hospitalized for over 20 years, no chance of recovery.
Bullet ants sound *in George Carlin voice* just *****in’ dandy.
Another reason why, heat be damned, I’d wear a toe to neck full body suit while trekking through the jungle.
EW EW EW EW EW.
That’s pretty much all I have to say about this.
Bleaghhh!!! I hate bugs and creepy crawlies… This was avery informative list and I agree with Lenore… I am never moving to New Mexico!
Just looking at the pictures creeps me out. All those pointy legs!
I think my cousin made this list, hes a huge nerd, nice list though!
Very good list. I am a science major and the insects that spread the deadliest diseases are described very well. I love the site and keep them coming. JFRATER ROCKS!!
http://rickmercer.blogspot.com/2006/11/spread-net.html
Makes me think of the importance of the “Spread the Net” campaign…
Yeah, mosquitoes are pretty nasty. I have a friend who was bitten by one and contracted West Nile Virus. Nasty bug that they thought at first was encephalitis. After nearly dying she has recovered to a point but wont ever be the same as she was before.
Gee, I’m going to need to remember that about the Tarantula Hawk next time I go to New Mexico. Great, if not a little scary, list
patholdenmd:
A very interesting list.
Just a note, however:
Unlike the others on the list, the Tick, Tsetse Fly and Mosquito are not at all dangerous… it is the (even smaller) creatures they carry that should be listed here.
None-the-less, a great way to wake up on a Sunday Morning.
Yuck Ew Gross I love snakes. Used to have several. But BUGS? I’d pass on those anytime.I have no use for anything with more than 4 legs. Ever.
0_0 These creatures prove Satan exists. lol
Great List!
Someone on another list expressed incredulity that I would camp in the midst of bear country. I’ll take big things that you can see and hear coming to kill you over these insidious little critters any day.
At least most of the bugs that we have in Ontario have the decency to anesthetize you before they take a chunk. Although the Black flies, if they ever decided to work co-operatively, could in fact carry you away and consume you at their leisure. They are that thick.
I don’t like bugs at all! Especially these ones that bite and spread disease. How about the next bug list is a list of pretty butterflies and ladybugs?
Bug grudges aside, this was a pretty informative list, nice job!
Thank you for instilling a constant feeling of the heebie jeebies. Now every time I feel a little tickle on my skin I’m gonna freak out, thinking that a very painful bite is soon to come. No, but seriously, great list. The only thing I may have considered would be the brown recluse spider. Their venom eats away at your flesh. I’ve seen a few pictures of their bites and they are narly. Wouldn’t want to run into one of them in a dark alley
Mom424: Given that you’re in Ontario, we could probably tell the folks here about No-See-Ums.
Those black flies and deer flies have made me think long and hard about doing that trick that Roger Moore did with a cigar and an aerosol can in “Live and Let Die.”
Down in our neck of the woods, we have fire ants, and it took me about two years to shake my Midwestern ways about working in the yard, with several jumps into the pool, fully clothed, after disturbing their nests. Occasionally, a small child or small pet disturbs one of their mounds, with very bad results: The ants swarm out, attacking anything and everything.
While I’ve had encounters with the Black Widow spiders — no bites, fortunately — I’ve read that there are Brown Widow spiders becoming common in the South, and anybody who’s ever tangled with a Brown Recluse spider can tell you all about the horrible damage their bites does to your skin. The following is not for the squeamish:
http://www.badspiderbites.com/brown-recluse-spider-bite/
Anyone see that episode of Wild Boys when they intentionally put their hands in a mitt of bullet ants? Apparently it’s a rite of manhood in small, indigenious tribes (near India, I believe) to wear a mitt of bullet ants for 10 minutes on both hands. Best part, they must do it 30 times before they can be considered a man. Steve-o and Party Boy lasted maybe 15 seconds. And they had to be treated at a hospital the next day.
Great list. Some I already knew about, others are new and enlightening. Gila monster is a thought, but I don’t think it’s as dangerous on a wide scale as the others mentioned.
ive been bitten by a bullet ant on a before. trust it is the absolutely the worst pain you will ever feel. it felt like someone shoved a red hot nail into my hand. the pain cripples you and the only thing you can do is howl in pain.
Csimmons: family ties on listverse,I love it xD
Driver Ants are known as Siafu Ants. Did anyone see Indiana Jones and the Crystal Skull this weekend? Dr. Jones calls them “Siafu,” however this ants do not live in South America naturally, they are not 2 inches long as they appeared in the movie, and they cannot over power healthy adult men.They are very well known to swarm in groups of 50 million ants (as they are shown in the movie).
When the two men are completely over run by the ants in the movie and die, it is HIGHLY fictional. Siafu are known as killer ants because they are known to kill infants when the infants are sleeping and the ants enter their airways and suffocate them. Eldery adult men have been known to die from the ants, however they were so highly intoxicated that they did not awake when the animals started biting.
I was highly astonished when I saw those scenes. The complete lack of truth in them was simply phenominal.
I check Listverse everyday and it’s one of my favorite sites. I do not comment often, but this happens to be what I’m attempting to get my degree in at the moment. =)
Keep up the great work!
What happen to FIRE ANTS?
bullet ants are crazy!
I also live in Ontario but spent a bunch of years on the east coast where every bug grew about 50% bigger. No-see-ums, they feel like they burn your skin when they bite. Strange though they aren’t as concerned with West-Nile there as they are here. Weird.
Though I’m glad I don’t live anywhere else. The world has some freaky scary bugs!!!!
Great List! Very informative. Thanks!
Are army ants the same thing as soldier ants? I would assume so, but just to add more terror, soldier ants are freaking BLIND. Blaaah…
Awesome list=D Good to know where I will never go ever in my life:P
Since living in Arkansas next to a rice field for about six years, mosquitos and ticks just don’t seem that scary. (your biggest worry here are da rednecks)
the bullet ant is very interesting to me. i’ve heard all the stories and i am just amazed. for one of you guys that has experienced this bite, could you describe the pain in detail. what did it feel like? what did you do? what did you want to do?
thanks for creeping me out about the ticks. i was in the woods last weekend and pulled several ticks off, including 3 in the “southern” regions.
What about dragon flies?
Expert: I might be wrong but I am pretty sure that dragon flies are harmless and don’t bite humans
I’d like to argue that the Black Widow spider should not be on this list– before the antivenom was created, only 5% of bites were fatal. I would replace it with the brown reckluse, or some other more venemous small creature.
these are definitely some nasty bastards!
ever heard of the japanese giant hornet
i saw a special where 20 0f them wipedout a
colony of 30 thousand hoey bees
the queen is 2 inches long!
monteze: It is possible that the ticks in your area aren’t known to carry any diseases. Where I live, probably 7 or 8 out of 10 ticks are carrying Lymes Disease! Almost all of my dogs have had it at some point (luckily it is treatable in canines) and several people I know have, too.
dragon flies are predators because they control the population of mosquitos, flies and bees and they usually never bite humans unless we try to catch one
all insects and arachnids regardless of whether or not they are dangerous are as creepy as hell
i especially hate:
cockroaches
flies
worms
bees
hell…. all of them!
MPW: if a dragonfly does bite is it painful? I think they are very beautiful creatures.
i think any time something tears into your flesh it might be painful
i disagree all bugs are hideous:)
Jamie:
How was the move?
spiders are horrible
don’t let the bed bugs bite
I think you may have confused number 4 pic, I think its actually a red back spider pictured there. Great list though!
I have this awful feeling that bugs ae all I’m going to dream about tonight.
Jfrater; I’ve handled dragonfly’s. I’ve never been bitten. I don’t think they can, but they do have gross hooky little feet, that grab at you, kind of like June Bugs.
June bugs are disgusting, they are big, meaty and they have barbs on their feet/legs. Get caught on you. Yuck, and you don’t want to kill them because they are crunchy/squishy. And they kill your lawn. (Larvae eat the roots).
PS; I have no idea how I managed to post this on the Chemical reactions list. Could you please delete it over there?
Nice, Patholdenmd.
I remember seeing pictures in a book when I was about 16, of some tribesman applying the army ants to an arm or leg cut. My questionable true/false image of memory, thinks that the bodies of the ants would have had to be pinched off from the heads, in order to retain a clamped jaw..and form the suture. Can anyone varify? I was quite taken by the photos.
Disgusting side note on my childhood life with ticks. We would get them and they were manageable, but our dog would have ticks with bodies swelled full with blood. I used to get my kicks by removing them and taking them into the bathroom, and with a ball-ping hammer–popping them with sickening glee.
And no, I haven’t turned into a pychopath.
Childhood life with the tiny worlds of pests.
MPW: Bedbugs suck! Little vampiric f*ckers. They kind of intrigue me too.
p.s. Patholdenmd
Although I understand your approach with this nice list, It makes me think of
the Boll Weevil as worth a mentioning and it’s historical infestation on America and the lengthy attemps at eradication.
Hell, great folksongs were written about them.
p.p.s
Perhaps if these creatures had cute little vests and hats on, they might not seem so dangerous.
just sayin.
GinMartini: i believe that is in fact a black widow:)
Diogenes:bedbugs really do suck literally, and so do ticks, fleas, mosquitos and leaches
Blood letting with leaches still exists doesn’t it?
never dealt with them personally.
The thought of them squirming around in a mason jar filled with creak water is enough for me to quickly reply in a Big No to having them “released”. I wish not to have leaches applied to my flesh. Thanks.
gotta say that leaches and maggots are on my list for squirming wriggling things I can do without. Although I know they have their purpose on the planet.
All God’s creatures, right?
not much you can say about maggots