How Can These Flies Live in Oily Black Tar Pits?

From Deep Look

How Can These Flies Live in Oily Black Tar Pits?
5 min4th5th6thScience
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Summary

Almost nothing can survive in sticky, poisonous asphalt -- but petroleum flies raise their young right in it. Deep Look reveals the special body that lets these flies feed and grow where other animals would be trapped and die.

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Teaching resources

Discussion questions

Talk about it

Petroleum fly larvae have a gut and body that handle toxic oil, and they feed on other insects stuck in the tar. Being built for a place nothing else can live means little competition and plenty of food.

  1. Why can petroleum flies live where most animals cannot?
  2. How does living in the tar give them food and safety from competitors?
  3. What would happen to an ordinary fly in the same tar pit?

Quick work-a-long

Vocabulary: habitat, adaptation, toxic, survive.

Try it: List one place that would be hard for you to live and why. Write what special 'gear' you would need, like the fly's special body.