Buzz·Mar 5, 201415 Tiny Animals That Can End YouLooks can be deceiving.by Hannah GreggCommunity ContributorFacebookPinterestTwitterMailLink 1. The Harvester Ant Flickr: jurvetson / Creative Commons Location: Southwest United StatesSize: 1/4", about the size of a tic tacWhat Gives? Each of these guys pack a powerful punch: they have the most toxic venom in the insect world. Now you're thinking, "They are small, they can't possibly do much harm." Wrong. They attack in packs. Good luck. 2. The Irukandji Jellyfish AdStock RF / Shutterstock.com Location: AustraliaSize: Less than 1”, about the size of a quarterWhat Gives? After being stung, symptoms such as vomiting, headaches, increased heart rate, and high blood pressure can set in within a matter of hours, or even minutes. Its venom is 100 times more powerful than a cobra's, and 1,000 times more powerful than that a tarantula's. 3. The Death Stalker Scorpion Flickr: furryscalyman / Creative Commons Location: AfricaSize: 2", about the length of a bobby pinWhat Gives? Because of its six different, fast-acting neurotoxins, this little guy kills several people annually. Check your shoes! 4. The Blue-Ringed Octopus Teguh Tirtaputra / shutterstock.com Location: AustraliaSize: 4", about the size of an average prescription bottleWhat Gives? It turns blue when it's ready to attack. Its beak is strong enough to pierce through wetsuit gloves and give the handler a fatal dose of venom. One dose of venom from these bad boys can kill 26 people. 5. The Boomslang Flickr: equinoxe-photostudio / Creative Commons Location: Southern AfricaSize: 36", or about the size of a 3-year-old childWhat Gives? Boomslangs contain a hemotoxin venom that, when injected, can kill within hours. This venom causes a victim to bleed out of every orifice. And yes, every orifice. 6. The Brazilian Walking Spider Luciano Queiroz / shutterstock.com Location: Brazil, duhSize: 4"What Gives? Not only does this nightmare have venom that is twice as potent as a black widow's, it packs a special punch. Coupled with a neurotoxin, their bites also deliver high levels of serotonin. So while this neurotoxin is busy shutting down your primary functions, the serotonin causes intense tremors from your brain. Talk about multi-tasking! 7. The Geographic Cone Snail Auscape/Contributor / Getty Images Location: AustraliaSize: 6", or about the length of a dollar billWhat Gives? This pretty snails have a lance with a cocktail of toxins. Your body will do anything to get the venom out, which will happen out of any and every hole in your body. 8. The Tarantula Hawk Flickr: trekman / Creative Commons Location: North AmericaSize: 2", about the length of a AA batteryWhat Gives? Aside from having the creepiest name ever, this giant hornet's venomous sting is the second-most painful sting in the animal kingdom. 9. The Golden Poison Dart Frog Flickr: gordon2208 / Creative Commons Location: ColombiaSize: 2", about the length of a paperclip What Gives? Let's just put it this way: Currently no effective antidote exists for the treatment of this type of batrachotoxin poisoning. This type of poison causes the nervous system to fail so quickly and effectively that tribesmen have been known to wipe their arrows with it. 10. The Hooded Pitohui Flickr: 16420772@N07 / Creative Commons Location: New GuineaSize: 9"What Gives? This bird's feathers are coated in the same stuff as the poison dart frog. It takes only a few minutes for this poison to seep through the skin and kill its victim. 11. The Lonomia Caterpillar Flickr: ronai / Creative Commons Location: BrazilSize: 2", about the length of a pink eraser What Gives? This little guy's venom penetrates the body and prevents your blood from clotting, which will eventually cause your body to swell up due to pooled blood. The poison will also attack protein cells, causing them to leak and preventing them from clotting as well. No wonder people call it the "Assassin Caterpillar." 12. The Puffer Fish Flickr: saspotato / Creative Commons Location: In the oceans, around the equatorSize: Can be as small as 1", about the size of a guitar pickWhat Gives? Its poisons are types of saxitoxin and tetrodotoxin, both of which can be lethal. The two can cause rapid heart rate, muscle paralysis, a decrease in blood pressure, numbness, and tingling. Oh yeah, and death. 13. The Yellow Bellied Sea Snake Flickr: gregthebusker / Creative Commons Location: Warm waters in the Pacific and Indian oceansSize: 28", about the size of the stem of an umbrellaWhat Gives? The venom is similar to that of cobras, except that this snake's is three times as potent. One drop of their venom can kill three grown men. 14. The Giant Japanese Hornet Andrzej Wilusz / shutterstock.com Location: Japan (and its relatives are all over east Asia)Size: 2", about the size of a lighterWhat Gives? Included in the Asian Giant Hornet species, these guys are the world's largest hornets. One hornet alone can kill an adult, and anaphylactic shock is a very common side effect of being stung. They can also fly at 25 mph, so running probably isn't your best option. 15. The Mosquito Flickr: jingleslenobel / Creative Commons Location: EverywhereSize: 0.3 to 2 cm, about the width of a pencilWhat Gives? Mosquitoes like to carry and transfer the world's deadliest illnesses, making them Public Enemy No. 1.