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Temperature and Survival
The Balance Between Warm and Cold
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The Annual Cycle of the Monarch Butterfly

It can be warm during the day at the monarch's winter home in Mexico, but at night it's as cold as the inside of your refrigerator. This is surprising! Why do monarchs migrate long distances to overwinter in a place that is so cold? This slideshow explores a key question:

Essential Question
What temperatures do overwintering monarchs need to survive?

 

 

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