Can you have two caterpillars in one chrysalis?

Happy butterfly week! It’s a whole week dedicated to beautiful insects with colorful wings that fly around in gardens and meadows. Butterflies start out as caterpillars. When the caterpillar is ready to change into a butterfly, it builds a shell called a chrysalis around itself and then goes through big changes. But can two caterpillars be in there together? We asked biologist Andrew Gordus of Johns Hopkins University to help us find the answer.

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