Is a Spider's Web a Part of Its Mind?

From Deep Look

Is a Spider's Web a Part of Its Mind?
5 min3rd4th5th6thScience
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Summary

A spider's web is more than a trap -- it is a tool the spider builds to sense the world. Deep Look shows how a spider reads the tiny tugs and vibrations in its silk to know exactly what has landed and where.

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All ages

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Teaching resources

Discussion questions

Talk about it

A spider spins silk into a web outside its body, then feels every vibration through its legs. The web works like an extension of the spider's senses -- a structure it makes to both trap prey and 'listen.'

  1. How does a spider know when something is caught in its web?
  2. Why is a web useful both for catching food and for sensing?
  3. How is a spider's web like a tool that it builds for itself?

Quick work-a-long

Vocabulary: silk, web, vibration, structure.

Try it: Pluck one string of a rubber band stretched between your fingers. Write how a spider feels tugs on its web the same way.