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Why do caterpillars turn into butterflies?

A caterpillar is a baby butterfly, and changing is how it grows up!

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  1. A caterpillar is a baby butterfly, and changing is how it grows up!
  2. First it munches lots of leaves, munch munch, and gets big and chubby.
  3. Then it rests inside a snug case called a chrysalis while its body changes.
  4. Wonder-ful! Out comes a butterfly with brand new wings, ready to fly!

Try it together

Can you curl up snug, then flap your butterfly wings?

For grown-ups

Butterflies go through complete metamorphosis: egg, caterpillar, chrysalis, adult. A caterpillar's job is to eat and grow. Inside the chrysalis, most of its body breaks down and is rebuilt into wings, legs and a new body. Having two forms lets the young and adults eat different foods.

Ask your child: Can we look for caterpillars on leaves outside?

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