Black Leather Lillian 120mm
2015年5月13日Black Black Leather Lillian 120mm Widow IdentificationWhat Do Black Widows Look Like? Where Do Black Patent Lillian 120mm Black Widow Spiders Live?Black widow spiders, scientific name Latrodectus mactans, are among the most venomous of all arachnids. I have been working with insects and spiders for almost 20 years, and I get a lot of questions about black Black Patent Leather Love Me 100mm widow spiders. What do black widows look like? Where do black widows live? Is the bite of the black widow spider fatal? These all excellent questions, and with this lens I hope to answer at least some of your questions about these much feared poisonous spiders.Black widows are large spiders that spin tangled webs in sheltered places, both in nature and in your house. They are also among the most poisonous insects in North America, and their bite can be fatal in some cases. If you found a spider and you suspect it may be a black widow, this lens will help you identify your specimen. Black widows are relatively rare, and most of us will never see one, but if you do you want to know exactly what you’re dealing with! If you ever wondered what it’s like to get bitten by a black widow, or the safest way to pick one up (it’s not with your fingers), then read on.What Does a Black Widow Look Like?Black Widow Identification The Red HourglassThis is the distinctive sign of the black widow a bright red hourglass marking on the animal’s ventral side (the "bottom" or underneath). It’s your surest guide to Black Widow identification no other spider has it. In the natural world, bright red, orange, or yellow markings are universally used to signify protection by venom or caustic chemicals in the insect’s haemolymph, or blood. This, in effect, tells everyone: "stay away from me, or you’ll be sorry." But the classic hourglass shape is only one morph that spiders in the Black Widow’s genus display. Here are a couple of other variations that still serve the purpose of warning away predators including you.By Steve Ryan [CC BY SA 2.0], via Wikimedia CommonsClose Up of a Female Black Widow Note the robust body, long black legs, and red hourglassBlack widows typically live in your garage or your basement. They prefer dark, sheltered corners where they can spin their tangled webs and wait for the moths and other insects that make up their diet. Black widows do not want you messing with them in fact, they view any interaction with you as a threat to their very existence. This is why the spiders will bite you it’s the only means of self defense that they have.Black widows live where you typically don’t go, so you’ll only encounter them when you’re cleaning out a garage, or reaching into a dark corner of a basement. So be careful! Make sure you can see where you’re putting your hand, and chances are pretty slim that a black widow will get her fangs into your flesh.Black Widow Identification The WebBlack Widow Biology What Makes a Spider a Spider?Black Widow identification begins with a question: What defines a spider? Spiders are a kind of Arthropod, a huge group of animals that includes water dwelling organisms like crabs and shrimp as well as all insects, including butterflies and moths. Spiders form a subset called "arachnids." They are separated from the closely related insects by several feature: spiders have eight legs instead of six, two body sections instead of 3, most spin webs with a special organ called a "spinneret" located at the tip of the abdomen, and ALL spiders are venomous. The venom of most spiders is only effective against the small invertebrates that they feed on, but a few have poison that can hurt vertebrates like humans. His only real reason to exist is to impregnate the female, and once that’s accomplished he becomes just another meal. While this may seem cruel and is the source of the Black Widow’s common name it is actually a perfectly rational survival mechanism developed through millions of years of evolution. After all, when food is survival, and the male is no longer needed, the solution is obvious.By Davefoc (Own work) [CC BY SA 3.0 or GFDL], via Wikimedia CommonsBlack Widow Identification The Spiders’ FangsThe fangs of the Black Widow, and all spiders, are believed by some researchers to be a highly evolved pair of legs that long ago became adapted to subduing prey. They are essentially hollow tubes that act like hypodermic needles to inject poison. The poison need to be powerful and fast acting, since the less the prey struggles in the web, the less damage the spider will have to repair. The toxin also often acts as a liquifying agent, turning the prey’s insides into a kind of soup that the spider then sucks up through the same fangs that were used to inject the venom.Black Widow White Leather Lillian 120mm Identification Female With PreySome spiders are capable of subduing even those insects with poison defenses of their own. This large female has captured not one but two wasps capable of inflicting a powerful sting to any predator, but the spider has avoided the stinger and inflicted its own fatal bite. Soon these wasps will be a meal for the spider.By John (Own work (Own photo)) [GFDL or CC BY SA 3.0 2.5 2.0 1.0], via Wikimedia CommonsSpectacular Spiders Have You Seen this Book? Introduce a Child to An Unseen WorldThis is one of the coolest children’s books going. Give your child an up close view of a natural world you never knew existed and watch as they touch a spider web to see how it feels, and see a spider hanging from a string.The Spectacular Spider Book (Beautiful Bug)The Spectacular Spider book introduces children to the world of spiders!This unique reference guide offers children a hands on experience up close and personal with a spider. This book explores the life cycle, habitat, and includes interesting features of spiders. Children can touch the flocking on a spider to see how it feels, or see a spider hang on a string from its web. The Spectacular Spider book also includes a fascinating facts page with interesting information about spiders, a glossary, and an index.Envenomation by the Black WidowBlack Widow bites are rare, since the animal spends most of its time in its web, unlike the Brown Recluse, which roams at night in search of prey and could wind up under your sheets (a truly unpleasant thought). To be bitten by the Black Widow, you basically need to come to the spider, since it probably won’t come to you: this means putting your hand in a dark corner of the basement or garage, or even in a tree stump I once found an enormous female who had built a nest in a dead tree, about head level. Once bitten, your prognosis is not good. Fatalities are rare, but you are likely in for several days of the effects of the spider’s neurotoxic venom.This work is in the public domain under the terms of Title 17, Chapter 1, Section 105 of the US Code. Nights 3 and 4 and 5 were complete disasters for me. For some completely unknown reason, I was sweating profusely at night. As in, literally soaking through my sheets and changing my sheets 3 times on one night and twice the next.
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