Surviving Winter
With just a few weeks of the winter season remaining, the monarchs have been surviving without food for 4 months. The oyamel forest where they cluster provides a cool microclimate, allowing the butterflies to burn through their fat reserves slowly.
![Monarch butterflies bursting from clusters.](https://s3.us-east-2.amazonaws.com/journeynorth.org/images/graphics/mexico/romero/022314_06.jpg)
Estela Romero
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