This Millipede and Beetle Have a Toxic Relationship

From Deep Look

This Millipede and Beetle Have a Toxic Relationship
5 min3rd4th5th6thScience
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Summary

A millipede can't run or bite, so it defends itself with chemistry -- oozing bad-tasting, even glowing goo from tiny pores. Deep Look shows how one clever beetle has found a way around those defenses.

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All ages

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Teaching resources

Discussion questions

Talk about it

A millipede releases defensive chemicals from a row of pores along its body when threatened. The bad taste and smell keep most predators away -- a structure-and-chemistry defense for a slow, soft-bodied animal.

  1. How does a slow millipede protect itself without running or biting?
  2. Why is a bad taste or smell a good defense?
  3. What might happen to a predator that ignores the warning?

Quick work-a-long

Vocabulary: defense, chemical, pore, survive.

Try it: Sort foods into 'yummy' and 'yucky.' Write how tasting bad keeps a millipede from being eaten.