Poisonous Spiders


Of Course! spiders are Poisonous

There are more than 38000 different species of spiders across over 100 families. Most of them are harmless but there is a small percentage which can be categorized as Poisonous spiders.

When little Miss Muffet ran away from the spider, she had good reason to do so. There are more than 38000 different species of spiders across over 100 families. Most of them are harmless but there is a small percentage which can be categorized as Poisonous spiders. Some of the venomous spider’s of the world causes symptoms such as stinging pain, nausea, itching and redness, swelling and even death. The neurotoxic venom in some poisonous spiders can also harm the nervous system.

Some of the known Poisonous spiders are Black Widow spider, Brown Recluse spider, Brazilian Wandering spider and Australian Funnel-web spider.
The Black Widow spider derives its name from the belief that the female eats it males after mating. The female have a black shiny body with orange spots on the abdomen. The male in contrast is smaller and not poisonous. The Black Widow spider bite can cause serious symptoms in adults and can be fatal for children and elderly. The spider bite can cause extreme pain, swelling, uneasiness and in some cases even hypertension. These poisonous spiders are found in United States mainly in Florida, Texas and Oklahoma.

The Australian cousin of the Black Widow spider is the very poisonous Redback spider or the Jockey spider or Kapara spider. The bite of this poisonous spider caused Latrodectism. The victim experiences throbbing pain, headaches, profuse sweating and mild burning sensation. In some exceptional cases the person may also have a respiratory failure, seizure or go into coma.

Another poisonous species what is found in mid-western region of United States and Gulf of Mexico is the Brown Recluse spider. It is marked by some unique feature such as three pair of eyes and its back resembles a violin. Therefore, it is also known as a fiddle-back spider. However, there is nothing musical about its venomous bite. Victims with a weak immunity system and children can be fatally affected.

The Brazilian Wandering spider has spun its way up to the Guinness Book of World Records in 2007 for causing the highest number of death of human with its venomous bite. It gets its name because during the night it wanders around in the jungle and during the day it hides inside termite mounds, under logs and in Banana plants. It is also called the Banana spider. They are very aggressive and are least hesitant to bite humans even in the absence of a threat. Its fatal venom contains PhTx3 neurotoxin which leads to difficulty in respiration, affects muscle control and also causes paralysis or asphyxiation.

The Australian Funnel-web spiders are found close to water and are rated among the very poisonous category of Hexathelidae. The treatment of the Funnel-web spider poisonous bite is similar to that of the snakebite and needs to be cured within 15 minutes otherwise it may cause death. The bite causes nausea, excessive salivating, vomiting, facial muscle twitch, shortness of breath and hypertension.

There are many other spiders such as the Crab spider, Wolf spider, Camel spider and many more that do not do bite unless provoked. Their bites are not so fatal but may cause a rash, redness of skin or burning sensation. Many of these symptoms cause discomfort and go away within a day.

Spiders can survive the toughest of conditions. They can sustain in a vacuum, extreme temperatures, under deep waters and even 30 miles above the Earth surface where the air is ultra thin. They are carnivorous and feed on insects, worms and even bigger creatures. Their ways of survival and capturing their prey are most fascinating. However, it is best to keep away from them and avoid being bitten by them.

 
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