ST. LOUIS Whether its ice, lake-bottom mud, or cave stalactites and stalagmites, if something piles up and accumulates over time, it can tell scientists about past climate conditions or surrounding landscapes and how theyve changed.
Thats also true for big, old, slippery piles of bat poop, or guano, from Missouri caves. The material is the focus of an ongoing study by researchers from Washington University, the Missouri Botanical Garden and Virginia Tech.
It makes for a messy medium.
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