Meeting a Wormlion Is the Pits

From Deep Look

Meeting a Wormlion Is the Pits
4 min3rd4th5th6thScience
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Summary

A wormlion digs a tiny pit in dry dust and waits at the bottom for an ant to slip in. Deep Look shows how this soft little larva builds a trap and flicks sand to keep its prey sliding down.

Viewer safety

Ages 7+Mild peril

This episode shows a predator eating real prey (a normal part of nature science) -- preview if that might unsettle your class.

Our rating is a quick teacher-to-teacher guide — preview before showing.

Teaching resources

Discussion questions

Talk about it

A wormlion larva makes a cone-shaped pit in loose dust. When prey tumbles in and tries to climb out, the wormlion flicks sand to keep it sliding down -- a hunter that builds a trap instead of chasing.

  1. How does a wormlion catch food without chasing it?
  2. What does it do when prey tries to climb out of the pit?
  3. Why is building a trap a good strategy for a small, slow larva?

Quick work-a-long

Vocabulary: pit, trap, larva, structure.

Try it: Make a cone-shaped dip in a cup of flour or sand and roll a bead in. Write how the wormlion's pit keeps prey from escaping.