Coal analysis suggests that plant-eating dinosaurs, by walking kilometers between their picnic areas and their toilets, distributed important nutrients widely and boosted ecosystem health.
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Bat Guano: A Possible New Source for Paleoclimate Reconstructions
Nitrogen isotopes within samples of bat excrement accurately reflect modern precipitation patterns. So could guano serve as a paleoclimate record?
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How Bat Breath and Guano Can Change the Shapes of Caves
Researchers working in caves in Borneo and elsewhere are finding evidence that biological processes shape many tropical caves by slowly eating away at surrounding rock.