posted on Apr, 11 2014 @ 07:32 PM
Nothing seems to strike fear into our hearts more than spiders (unless it would be snakes!).
From the arachnid family, spiders form the largest part. There are about 40,000 different species of spiders, and of those, about a dozen are deadly
enough to kill a human.
Do you recognize any of these from your area? It wouldn't hurt to learn about them so you can RUN if you see one! LOL
Here are three of the deadliest spiders in the world, which could be crawling around in an area near you!
The Brazilian wandering spider, or banana spider, has repeatedly ranked as the world's most venomous spider in "Guinness World Records."
Fittingly, it belongs to the genus Phoneutria, which means "murderess" in Greek. [Creepy! Amazing Photos of Spiders]
The spider's bite is potent enough to kill a human within minutes if antidote isn't delivered. Even with antivenom, on rare occasions, the bite can
still prove deadly. Just 6 micrograms of venom are enough to kill a 20-gram mouse, and the spider carries more than 10 times that amount of venom in
In addition, the spider's bite can cause a long, painful erection in men, scientists discovered in 2007. The venom boosts levels of nitric oxide, a
chemical that increases blood flow, and some have considered using the venom in drugs for erectile dysfunction.
Found mostly in South America, the large brown spider, which sometimes sports a black spot on its belly, can reach up to 2 inches (5 centimeters) in
body length, with a leg span of 5 to 6 inches (12 to 15 cm).
The spider has a trademark move, raising its two front legs in an intimidating pose when frightened. This pose reveals the arachnid's red-haired
fangs. The "wandering" part of its name comes from the spider's hunting habits. Instead of using a web to catch prey, the Brazilian spider
"wanders" around and hunts on the ground.
Black widow spider
The ominously named black widow is a shiny black spider, but the females have an even more ominous hourglass-shaped mark on their abdomens, as if to
say "time is running out." They earned the name "widow" because the females of many species eat the males after mating. Several species of black
widow spiders exist, residing in temperate areas around the world. They are the most venomous spiders in North America. Before the antivenom was
discovered, about 5 percent of black widow bites proved fatal.
These spiders like to lurk in woodpiles, sheds, outdoor furniture and chain-link fences, but they have a special predilection for old-fashioned
outhouses. (Perhaps that's where these lyrics from the Australian country song about the black widow's cousin the redback spider come from: "There
was a redback on the toilet seat/When I was there last night. I didn't see him in the dark/But boy, I felt his bite!") Fortunately, modern home
plumbing and heating make such outhouse encounters rare.
Funnel web spider
The deadly Australian funnel web spiders owe their name to the conical webs these creatures use as burrows or prey traps. In fact, there are three
different families of funnel web spiders, only some of which are dangerous to humans. The Hexathelidae family — the dangerous variety — includes
about 40 species in Australia, such as the notorious Sydney funnel spider and its tree-dwelling cousins.
These spiders are usually black or brown; sport a shiny, hard, slightly hairy covering called a carapace on the front of their bodies; and range
between 0.4 and 2 inches (1 to 5 cm) in body length. Nocturnal creatures, they prefer humid climates. Most live on the ground, but some dwell in
trees. The bite can be life-threatening, especially in children, but is usually nonfatal if antivenom is administered.
So be careful of these little, leggy beasts. But if all these eight-legged horrors scare you, keep in mind that most deadly spiders are shy and attack
only when threatened.
Here are more pictures of different varieties:
Above, a Mexican red knee spider, a type of tarantula that lives mainly on the Pacific coast of Mexico.
A trapdoor spider, Liphistius dangrek. These spiders spend most of their time in underground burrows, emerging mainly to grab prey. Their rear
half is segmented, a trait visible in some of the earliest spider fossils.
This is a rare 100-million-year-old fossil of a spider in limestone. Spiders do not preserve well in sediment because they have a relatively soft
“shell” or exoskeleton. For every 1,000 or so insect fossils found, there’s only one spider.
This spider was trapped in tree resin about 20 million years ago. Over, time the resin fossilized into amber, preserving the animal
A brown recluse, Loxosceles reclusa. This spider is identified by a dark, violin-shaped mark on its head. Its venom can cause a deep wound in
humans that takes weeks or even months to heal and can produce symptoms such as nausea and a fever.
I've seen many of these crawling around my workplace! If they bite you, LOOK OUT! I've even heard of people's skin rotting off, and spreading to
surrounding areas, if they didn't seek help immediately!
A gooty sapphire ornamental spider, Poecilotheria metallica, shown from above.
A gooty sapphire ornamental spider seen from below.
I like the colors on his legs, but...
A golden orb-web spider, Nephila pilipes. Found throughout parts of Asia, this large spider has yellow on its abdomen and spins a golden
An orb weaver Argiope sp. Members of this genus are found all around the world and spin large webs that often contain striking designs.
seen these in my neck of the woods. They do make some awesome designs in their webs.
A funnel-web wolf spider, Sosippus californicus. This spider spins a sheet-like web attached to a narrow tube, or funnel. Sitting at the mouth of
the tube, the spider waits to strike after feeling vibrations of prey crossing the web.
There are lots of this type where I live. They scare the crap out of me!!
A southern house spider, Kukulcania hibernalis. The large charcoal-colored females make flat, tangled webs in dark corners and under overhangs and
shutters to catch insects.
I live in the south.
I better never see one of these in my house!!
An Indian ornamental tarantuala, Poecilotheria regalis.
I know lots of people keep tarantulas as pets! I will NEVER understand how someone could have one of these in their home on purpose!
More Pics here: www.livescience.com...
I hoped you enjoyed our little science lesson on spiders, and your skin didn't crawl too much while reading.