Spiders, in general, are not dangerous. There are around 45,000 species of spiders worldwide, but only about 30 of them are capable of causing serious bites.
Therefore, we can say that randomly choosing a spider is 99.9 percent likely to be harmless.
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In Australia, records indicate that the last reported death from a spider bite was in 2018 – the year before that was 1979 – due in part to effective antivenom treatments.
In the UK, only 12 out of the 650 native species have fangs large enough to penetrate human skin.
While a wasp sting can be unpleasant, there are no distinguishing features that set them apart from harmless species.
This article addresses the question (emailed by Aimee Barrett): “How can I tell if a spider is dangerous?”
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Source: www.sciencefocus.com