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overlook

Hendrix College student researchers participated in a study that showed mountains in the Interior Highlands of Arkansas each feature their own communities of parasitic wasps—and likely other insects—that differ from the insect fauna found on other mountains and in the surrounding valleys. The Interior Highlands, centered in Missouri and Arkansas and including the Ouachita Mountains and Ozark Plateau, were chosen as a study site because they have been above sea level for 320 million years, likely serving as a refuge for ecological communities avoiding the impact of the Pleistocene glaciers. Mountaintops in the region are commonly wetter and cooler (by as much as 10 degrees Fahrenheit) than the landscape below. (Photo courtesy of Allison Monroe)

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