Daddy Longlegs Risk Life and Especially Limb to Survive

From Deep Look

Daddy Longlegs Risk Life and Especially Limb to Survive
4 min3rd4th5th6thScience
access

Summary

A daddy longlegs isn't a spider, and when a predator grabs a leg, it can pop that leg off and walk away. Deep Look shows how those long legs sense the world -- and how losing one can save the animal's life.

Viewer safety

All ages

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

Teaching resources

Discussion questions

Talk about it

A daddy longlegs can drop a leg to escape a grab, and the leg keeps twitching to distract the predator. It also 'tastes' and feels its world through those legs. Losing one costs the animal, but staying alive is worth more.

  1. What does a daddy longlegs do when a predator grabs its leg?
  2. How can losing a leg actually help the animal survive?
  3. Besides walking, what else do the long legs help it do?

Quick work-a-long

Vocabulary: autotomy, survive, sense, structure.

Try it: Wiggle just one finger while holding still. Write how a dropped, twitching leg tricks a predator while the daddy longlegs escapes.