Whatever you believe about spiders, chances are it’s wrong, and the internet is saturated with bad science that will mislead you further. These experts are trying to change that
Travis McEnery is a Nova Scotia machinist who makes educational videos about spiders, aided by expert advice from Catherine Scott, an arachnologist at McGill University.Travis McEnery figures people want to know three things about the spiders living with them: Is it gonna surprise me, or stay put? Will it make a mess? And, if it’s bitey, do I need to worry about it?Cheiracanthium mildei
While those stories might not tell us much about spiders, they do say a lot about our own human nature, about how and why we take facts and turn them into fiction. Midway through the yellow sac video, he traps his guest spider on a rock island in a casserole dish filled with water and pokes at it with a block of cheddar cheese. After a minute of pestering, the little spider finally bares tiny fangs and bites down. Point proven: This supposedly villainous arachnid had to be badgered into biting, and, even then, only in self-defence.
grew up so frightened of spiders she wouldn’t step into a room with one until her mother had cleared it out; she’s now a leading expert in the sexual habits of black widows, with a popular science blog, Spiderbytes. As he continued researching yellow sacs, Mr. McEnery eventually found the paper written by Andrew Spielman and Herbert Levi, published in the American Journal of Tropical Medicine and Hygiene in 1970 – behind a $20 paywall. You can read a salacious tabloid headline for free, but youThat paper, he discovered, does not convict the yellow sac spider at all; at best, the authors declare it an arachnid of interest.
Yet, the more often all manner of suspicious bites are credited to a certain spider, the wider the list of anecdotal symptoms and the longer the spider’s rap sheet grows. That’s a problem for humans, because dozens of other serious conditions can cause red, oozy marks on the skin: athat’s potentially fatal if undiagnosed, anthrax, diabetic ulcers, cancer, lymphoma, leukemia. Observes Mr. Vetter: “At this point, you wish you had a spider bite.
Arachnophobia is believed to be the most common biophobia, or fear of things in nature, but its actual prevalence varies widely in research. A recent estimate, published in the science journal Nature, puts the range between 3 and 11 per cent of the population. But beyond those who are clinically diagnosed, the higher number of us who are jumpy around spiders makes scientists think that humans evolved a better-safe-than-sorry aversion to skittering creatures that might be dangerous.
One place to reasonably worry about spiders is Australia, home to the Sydney funnel-web spider, which challenges for deadliest species in the world, and bites about 40 people a year. Another 2,000 or so run afoul of the redback, a second dangerous spider. But there have been no verified deaths from a confirmed bite there since 1980 – not since the invention of widely available venom antidotes.
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