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About the Cover
Cover: Imagine yourself in a dense forest: nothing from which to get your bearings except for trees that all look alike and patches of sky visible through the leaf canopy. Field crickets cope with a similar situation when foraging in a meadow. In contrast to humans, however, crickets can detect skylight polarization and use it for compass orientation (see article by Henze and Labhart, pp. 3266−3276). Their polarization sense is robust enough to rely on even if sky visibility is restricted to pinhole size. Photograph taken in a meadow with a 180° fisheye lens, by Martin Kohler and Miriam Henze.
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