Imagine you're a House Spider (
Parasteatoda tepidariorum). You've just snagged a delicious Crane Fly (family
Tipulidae). You chase off your web-mate and hurry to bite the fly, which is a task in and of itself.
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Fangs out... |
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Attack! |
But then, a couple of small flies get caught in your web. You must go bite them too. Meanwhile your web-mate checks to see that you're occupied and proceeds to haul in that prized Crane Fly for herself!
When you confront your web-mate, she gets belligerent! So you must resign yourself to the reality that you're never getting that Crane Fly back...
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"Thief!" |
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She attaches a silk line to the fly to drag it over to her place. |
The next day, there's not much left of your stolen prey.
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