Do centipedes sting? Is the sting dangerous to humans?
612229
Centipedes(Scolopendra)bite. The head carries a pair of long, sensitive antennae and, in addition to small chewing mouthparts, a pair of laRge, strong claw-like structures just below the head and are equiped with poison glands.Their bite is generally harmless but some species bite can leave you in pain for hours but it is has no other affect.So centipedes are not dangerous.
995715
Spiders can bite and sometimes do for no reason.  They also are usually nocturnal (coming out at night).  \n\nMost spiders can not bite through human skin.  The ones that can are fairly rare and are usually known locally and eradicated.  (At least in the US)\n\nBefore you fear something, its a good idea to look to those with more experience (time).  I've lived with spiders for more than 4 decades and have only been bit once, and it wasn't much worse than a mosquito bite.  So ask those around you to lay your fears to rest.
878859
Good question, I would think so. Their venom is very poisonous. Here are a few websites on cobras and their venom, because I don't know much about them:\n\nhttp://cobra.ucsd.edu/Research/Cobra%20Venom.htm\nMostly about the chemical make-up of cobra venom, but not the best one. It's pretty short.\n\nhttp://www.nationalgeographic.com/features/97/kingcobra/index-n.html\nThis one is really reliable, it is an actual National Geographic website! Click on the "Enter if you dare" thing and a pop-up will come up with an interactive cobra explaining the different features. It says the venom kills by stunning the nervous system and stopping your breathing! Also, some king cobras can stand up to look you in the eye.\n\nhttp://www.rochedalss.qld.edu.au/animalprojects/cobra.htm\nHere's just a short little site with information on cobras, king cobras namely.
443012
In general, Huntsman spiders are not regarded as dangerous. There are however reports of members of the genus Neosparassus (formerly called Olios) giving bites that have caused prolonged pain, inflammation, headache, vomiting, and irregular pulse rate. It is unclear under what circumstances these spiders bite people, but it is known that female members of this family are quite brave in defending their egg sacs and their young.\n\nHuntsman spiders is a common name given to the family Sparassidae (formerly Heteropodidae). These spiders are found in Australia, New Zealand, South-east Asia, the Middle East in areas near the Mediterranean Sea, Florida and Hawaii in the US, and quite possibly in many other tropical and semi-tropical areas.
89221
Sea Urchins spines are generally not poisonous to humans, but are very painful if they stick you and are prone to nasty infections. Sea Urchin spines can be very sharp and can penetrate neoprene rubber wetsuit material so you need to take  care when diving near them.
869573
You don't mention where it was found so that makes ID difficult; sounds like a Scolopendra. Look through these pics to see if you find a match. Some are poisonous; some are not.\n\nhttp://images.google.com/images?svnum=10&hl=en&lr=&as_qdr=all&q=+%22scolopendra%22+centipede&btnG=Search
897206
Some centipedes have hundred or more legs but no millipedes got a thousand.\n \nCentipedes (Class Chilopoda) are fast-moving venomous, predatory, terrestrial arthropods that have long bodies and many jointed legs. How many legs a centipede has depends on its species and age. Despite their name, which stems from the Latin words 'centum' (meaning 'hundred') and 'ped' (meaning 'foot'), thus mean "hundred legged" not many centipedes actually have as many as that number. Some have as few as 15 pairs, others have as many as 173 pairs, but most sorts have about 35 pairs. They normally have around half that number of legs, though it is possible to find centipedes with over 200 legs. Centipedes are highly segmented but with only one pair of walking legs per segment.\n\nMillipedes (Class Diplopoda, previously also known as Chilognatha) are very elongated arthropods with cylindrical bodies that have two pairs of legs for each one of their 20 to 100 or more body segments (except for the first segment behind the head which does not have any appendages at all, and the next few which only have one pair of legs). Each segment that has two pairs of legs is a result of two single segments fused together as one. The millipede's most obvious feature is its large number of legs. If you want to know how many legs a millipede has, count the number of body segments and multiply by four. Its name is a compound word formed from the Latin roots milli ("thousand") and ped ("foot") meaning "thousand foot" but these creatures do not have a thousand legs, although there are rare species  like "Illacme plenipes" that have up to 750 legs.( Illacme plenipes, typically have more 650 legs; the leggiest ever found in 1926 had 750.  However, common species have between 80 and 400 legs.♥
114337
Centipedes very, very rarely have 100 legs. Most have between 20 and 50. Some have as few as 8, and a handful of species have 100 or more.
1164174
The lighter the scorpion, the more poisonous the sting. General, a healthy adult male who is stung will be fine. As for how long it takes to feel effect, It depends on the scorpion (What kind). Usually 1-3 hrs.
1018925
Chuck Norris\n\nContrary to popular belief, Chuck Norris, not the box jellyfish of northern Australia, is the most venomous creature on earth. Within 3 minutes of being bitten, a human being experiences the following symptoms: fever, blurred vision, beard rash, tightness of the jeans, and the feeling of being repeatedly kicked through a car windshield.
680598
As far as I know, there is no species of spider commonly known as the "blue-back."  All spiders are technically poisonous, but if you mean "potentiall dangerous to humans" and the spider you're referring to is from the US, then the answer is probably no, since none of the dangerous US spiders that I know of could reasonably be called a "blue back" spider.
1175642
It definitely sounds as though it is probably a beetle of some kind.\n\nThe hard, shiny black/blue/green mixture and the hard body and its toughness all point to the probability of a beetle, as does the resemblance to a lightning bug (which is actually a type of beetle).\n\nUnfortunately, identification beyond 'beetle' is difficult from this information.  The beetles are the largest group of insects in the world, with as many as a million different species in the group.\n\nThe good news is that there are no beetles that are venomous or dangerous to man beyond a little nip or bite.  The beetles have rather generalized chewing mouthparts, and there are no bloodsucking or poison injecting members of the group.\n\nIf the bite you have sustained is from this insect, it is unlikely to be serious.  The biggest danger would be from infection, which could occur if you scratch the wound and bacteria from your fingers enter the cut.  It is possible that this is what has occurred in your situation, since the symptoms you describe fit such an infection.  If the swelling, itchiness or redness increase, I would definitely see a doctor.\n\nEven if it wasn't your unidentifiable beetle that caused the wound, infection of the wound is still your greatest danger.  Any toxic effects from a poisonous critter would have been felt already.
6922
Of course it can.  Most likely it will shy away from you, but it IS possible.\n\nAs far as sucking venom, it appears that treatment has fallen out of favor, but not because it harms the "sucker" but because it increases trauma in the wound area.\n\nInterestingly, from the FDA site below, it says sucking has fallen out of favor, but the CDC site below says it's OK!  It also says that venom can be ingested orally with no ill effects.\n\nCDC: Do suck and squeeze - as much venom as possible directly from the wound. Venom is protein and can be taken orally with no ill effects.
264042
i have a scorpion the sting looks like a little ball with a hook on the end. imperial scorpions sting is less painfull than a bee sting.
580128
Cockroaches sometimes bite humans, but not often. Their bite by itself will not cause disease, but if the cockroach came into contact with disease-causing organisms before biting then a disease may be transmitted. The bite marks should appear as small, scabby areas. Sometimes sleeping infants are bitten around the mouth by cockroaches that are attracted to spilled milk or food in that area.
512372
Actually yes there are... here is one that is acutally called the Asian Centipede...\n\nPhysical Characteristics: Centipedes have long, flat bodies. Their trunks have many segments and almost all have 2 legs each. Adults in the family Scolopendridae have 21 or 23 pairs of legs, which are quite long and thick. The two last legs are very long and stick out backwards at the tail end of a centipede’s body. Its legs have joints and can bend. On the front of the head are two long antennae and under its head are two poison claws that end with a curved fang with a pointed tip. Centipedes may be as small as 2.5 inches long or as large as 12 inches long.\n\nMost Myriapods (both centipedes and millipedes) have tiny eyes, which can sense only light and dark, but cannot see color. Without eyes, their body surfaces sense light and dark. Tiny hairs on their bodies help them sense when something touches them. The antennae are waved around to smell and taste surroundings.\n\nDiet: Insects, spiders, earthworms, snails, and millipedes. Certain large centipedes eat small frogs, lizards, snakes, birds, and mice.\n\nBehavior: Much time is spent cleaning their antennae by wiping them with their mouths or front legs. When prey is caught, the centipede stabs the animal with its poison claws and injects its poison. The centipede then holds its prey and bites off one piece at a time.\nMost centipedes have long legs and can run quickly from danger and may even be capable of catching flying insects. Some centipedes can even break off some of their legs if a predator catches hold of them. The missing legs grow back the next time the centipede molts. Scolopendra species use their bodies to dig chambers in soil where they may rest for several days.\n\nYour friend is probably going to be ok.  Here is some information on bites from centipedes. \n\nDefinition    \n\nThis article describes the effects of a centipede bite.\n\nPoisonous Ingredient    \n\ncentipede venom \nWhere Found    \n\ncentipedes \nSymptoms    \n\nbody as a whole \npain in the area of bite \nswelling in the area of bite \npossible lymph node swelling \nskin \nredness in the area of bite \npossible numbness at the site of the bite \nHome Treatment    \n\nPlace ice (wrapped in a washcloth or other suitable covering) on the site of the bite for 10 minutes and then off for 10 minutes. Repeat this process. If patient has circulatory problems, decrease the time to prevent possible damage to the skin. A trip to the emergency room will probably not be necessary, but contact Poison Control just to make sure.\n\nBefore Calling Emergency    \n\nDetermine the following information:\n\nthe patient's age, weight, and condition \nthe identity of the centipede if possible \nthe time of the bite \nPoison Control, or a local emergency number    \n\nThey will instruct you if it is necessary to take the patient to the hospital. See Poison Control centers for telephone numbers and addresses. If possible, bring the insect to the emergency room for identification.\n\nWhat to expect at the emergency room    \n\nThe symptoms will be treated.\n\nExpectations (prognosis)    \n\nSymptoms usually last less than 48 hours. Severe allergic reactions or contact with exotic specimens may require more treatment.
575018
Pholcus phalangioides\n\nThe Pholcidae, or daddy long legs spiders, is a large family with a worldwide distribution. In South Africa there are 3 genera; Pholcus, Smeringopus and Spermaphora. These spiders are harmless to man as their jaws are unable to penetrate human skin and the venom dose is also too minute. Spider specialists are often asked if it is true that, of all the spiders, the pholcids have the deadliest venom and the only reason there are no human fatalities is because of the small size of the jaws. There is no documentation on this. The venom is neurotoxic and is deadly to the prey. The pholcids, as well as other spiders, should be encouraged in the home as they control various insect pests such as mosquitoes, flies, fishmoths, ants and moths.\n\nmore info in the link below!