Contact: Diana Yates, Life Sciences Editor
University of Illinois at Urbana-Champaign
Caption: University of Illinois plant biology and geology professor Feng Sheng Hu collected core samples from Alaskan lakes. The abundance and diversity of midges buried in sediments offers a reliable record of temperature fluctuations over time.
Credit: Feng Sheng Hu
Usage Restrictions: This photo may be used only to accompany articles about the research described in this release. Please credit: Feng Sheng Hu.
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