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Dr. Lincoln Brower, pictured below, ordered the satellite image with his colleague at NASA, Dan Slayback. Scientists are concerned about deforestation (the clearing of a forest by people). Monarchs need a healthy forest to survive the winter in Mexico. The satellite image will show the state of deforestation as of 2009. "We will have an all-time, historical archive of the current state of the monarch butterfly Reserve," he explained. "We will be able to use these images to monitor the state of the Reserve through time." Photo by Don Davis