Two interesting articles Millions of Tiny Spiders Spin Mystery in a British Columbia Clover Field, and Spiders weave huge natural wonder in B.C. cover a story from 2002:
A biology professor in northern British Columbia has spotted a clover field crawling with spiders.
Brian Thair of the College of New Caledonia in Prince George said he saw a silky, white web stretching 60 acres across a field.
Related: Another remarkable natural event, giant wasp nest. Also see a post on spider thread.

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