Within the California Academy of Sciences‘ rainforest exhibit, butterflies and moths emerge from their chrysalis and cocoons in a specially designed emergence display. Biologist Tim Wong shows how they set up the climate-controlled viewing chamber with 100-200 butterflies per week—65 different species from Costa Rica, as well as around Africa and Asia.

Next: Monarch Butterfly Metamorphosis in HD and what happens to a caterpillar inside its chrysalis?

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