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Bugs: Some are Annoying, Some are Deadly

Bugs: Some are Annoying, Some are Deadly


Bugs play a major roll in the world's ecosystem. They're food for other critters higher on the food chain, pollinate plants, and they help decompose dead plants and animals. There are over a million known species of insects on earth, and that's not including the arachnids (spiders). We react with fear when faced with a grizzly bear or a great white shark, but the pesky mosquitoes, flies, and creepy-crawlers are simply annoying? Or are they? Bugs and the disease they carry kill millions of people every year and sicken and scar millions more. While the vast majority of bugs are harmless, there are a few we need to be leery of. Listed below are the top ten most dangerous bugs in the world, and understanding the danger is half the battle.

  Ten Most Dangerous Bugs

#10 Puss Caterpillar

th_250px-Puss_caterpillar1.jpgMegalopyge opercularis is often called the southern flannel moth or pussy moth. It's when they are in caterpillar form that they are the most dangerous. The body is covered with long, red-brown hairs. It looks soft, but when frightened, its hair rises. Beneath the hair are needle-like spines connected to a poison-filled gland. The poison is injected into anything it touches.

The poison causes a burning pain, swelling and numbness to the sight of entry, an in severe cases it can cause high fever, vomiting and paralysis.

The M. opercularis are fairly common throughout the southern United States, Mexico and parts of Central America. They can be found on oak, elm, birch, citrus trees and many other common trees. It can also be found in the garden feasting on plants and flowers such as the ivy and the rose bush.

While the Puss Caterpillar rarely causes death, crossing swords with one can and will be a painful experience.

bugs

Adult Form: The Southern Flannel Moth 

#9 Human Botfly

Bugs: Some are Annoying, Some are DeadlyBugs: Some are Annoying, Some are Deadly The Human Botfly, D. hominis, is a parasite. When they are ready to reproduce, they look for a warm, moist place on a person's body to lay their eggs. Sometimes they attach the eggs to a mosquito. The eggs will either hatch while the mosquito is feeding or use the site of the bite as an entry point. The larvae, commonly refered to as maggots develop inside the subcutaneous layers of the skin. They feed off of human tissue for close to eight weeks before burrowing to the surface and drop to the ground. The pupate stage lasts for about a week before they evolve into the adult form. The adult Human Botfly is once again looking for a sutable host for her eggs.

The Human Botfly is native to Mexico and Central America. While they are not the most dangerous bug in existance, it certainly is the grossest

Bot Fly

Human Botfly 

#8 Brown Recluse

Bugs: Some are Annoying, Some are DeadlyBugs: Some are Annoying, Some are Deadly Eighth on the list of most dangerous bugs is actually a spider. The Brown Recluse Spider, or Loxosceles reclusa is a tiny spider, measuring just 6 to 20 mm in length. It is brownish-yellow in color with a black line on its belly that resembles a violin, hence the nickname fiddle-back spider. Unfortunately the violin shape is not always visible so it is not a reliable identifier.

When the brown recluse bites its victim, it releases venom into the bite. The poison causes the bite site to burn and sting. It may be accompanied with vomiting and a feeling of exhaustion. The bite blisters and then slowly blackens. The wound can open up into a dermonecrotic lesion or ulcer.

Whole most bites are minor with no necrosis, there are a few that form huge lesions that can take months to heal. The systemic symptoms can include organ damage and on rare occasions, death.

The Brown Recluse is native to the southern United States and the area surrounding the Gulf of Mexico. As the name implies, it is not an aggressive spider. The brown recluse will seek refuge in the folds of cloths and towels left lying around. Tangled in the clothes, they are more likely to be pressed

10 dangerous diseases in the world

10 dangerous diseases

 

10 dangerous diseases,Of the various types of disease that was derived from many animals and most dangerous. What are the world’s most dangerous diseases that can be transmitted to animals and humans?

The following information on the disease 10 dangerous diseases.

1. Pandemic influenza

Deadly flu pandemic like the Spanish flu, swine flu or bird flu has struck in several countries. Pandemic potential is very easily transmitted through direct contact, so that could be very dangerous.

Between 1918 and 1919, Spanish flu killed 20 to 40 million people. This is truly a global disaster. This deadly flu strikes people ages 20 to 40 years, and infects 28 percent of Americans.

And lately also emerging swine flu and bird flu that has become epidemic in some countries. Now, governments are better prepared, scientifically and logistics to manage the outbreak. However, there is no vaccine againstswine flu.

2. Plague

Bubonic plague is better known as the ‘Black Death’,

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by padam pudasain on September 05, 2011