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Image: graftedno1

Brown recluse female, 10 – 11 mm, very poisonous.

Whether crawling on eight legs along their webs or scurrying from their dens – ready to pounce and kill anything that they wish to eat – spiders can be the stuff of nightmares. Yet, even as they spin their silk to lure hapless prey, spiders hold a fascination for us as well.


Image: Calistemon

Many spiders are venomous, of course, and some can even kill people; they can certainly kill their dinner many times over! Here we take a look at the ten most venomous spiders on earth – taking into account not just the toxicity of the venom but also the amount the spider administers (and its aggressiveness as well).

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Image: Richard Bartz

10. Yellow Sac Spider

The beautiful Yellow sac spider is one of the least venomous in our list – but is still a seriously poisonous proposition. Yellow sac spiders are likely to make the drag line webs of the type you might get rid of with a broom or vacuum cleaner, but thankfully they rarely get near humans to bite. One of the dangers of their bite is a close connection with MRSA infections, which can be very serious; however the level of toxicity itself is disputed, even though the bite can leave necrotic – or dead tissue – lesions.

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