5 Most Dangerous Spiders in the World

Whether you are in the desert or at home, you will never be so far from a spider. However, there are so many different types of spiders, about 40,000 in the world, that it’s hard to know who’s interested and which ones are harmless. In this gallery, I rank the 5 most dangerous spiders in the world. I’ve identified how common the spider is, how aggressive it is, and how deadly it is for humans. Although everyone’s immune system reacts differently to the bite of a spider (symptoms can range from pain to nausea, to death), beware of the following arachnids.

  1. Brazilian wandering spider (Phoneutria)
    These species are sometimes called banana spiders, as they are common in banana leaves. They have an aggressive defensive posture in which they raise their forelegs in the air. Phoneutria is toxic to humans and is considered the most deadly spider in the world. Its venom is toxic to the nervous system and causes symptoms such as salivation, irregular heartbeats and persistent, painful erections (priapism) in men. Scientists are studying the toxicity of P.nigriventer as a possible treatment for erectile dysfunction.
  2. Funnel-shaped spiders (family of diplurids)
    This spider, native to eastern Australia, is one of the most feared animals. They are usually between 1 and 3 inches long and can be very aggressive if provoked. The long female funnels spend most of their time in tubular niches covered with silk. Men tend to wander in the hottest months of the year in search of sensitive women. The Sydney Funnel Web Spider is responsible for 13 confirmed deaths between 1927 and 1980.
  3. Brown Prisoner / Chilean Prisoner (Loxosceles)
    The recluse brown spider, also known as “violin spider”, “violinist” or “violinist”, wearing the dark violin-shaped mark on its head, is a spider that moves slowly and retreats into areas dark. They often dress in shoes, clothes, and beds and are thus easily stuck in someone’s skin for clothes, bedding, etc., which leads to the bite of the spider.
    Most encounters with this spider occur when boxes are changed or searched in closets or under beds. The Brown Recluse rating in the United States. It is mainly limited to the Midwest, South, and Southeast. However, there are several related solitary spiders (some non-native introductions) in southern California and neighboring areas.
  4. spider sand with six eyes
    The six-eyed sand spider is a medium sized spider with 1 to 2 inches of body and paws up to 4 inches. It is present in deserts and other sandy areas of South Africa, Africa, and South America. There are close relatives: The six-eyed sand spider is a cousin of the recluse, present throughout the world. Because of its flattened posture, it is sometimes referred to as the six-eyed spider crab. Spider bites in humans are rare, but it has been experimentally proven that it can kill rabbits within 5 to 12 hours.
  5. Redback / Black Widow Spider (Latrodectus)
    The widow or red spider, as it is known in Australia, is one of the most famous spiders in the world. Immediately recognizable by its round, black belly with marked red marks, these are definitely spiders with which you can not play. The redback and the black widow both belong to the Latrodectus family and the redback is a little more toxic than the black widow. And this poison is more powerful than any other spider except one. The only reason these spiders do not top the list is that they are smaller and offer less.
    The effects of this deadly toxin range from a burning sensation to pain, to a systemic disease, called latently. Symptoms include generalized pain and swelling of the affected area, abdominal cramps, nausea, and sweating, to name a few. This condition occurs in about half of the bites and was often fatal in very old and very young people before the antidote was available.