Dung beetles aim for the stars
Dung beetles aim for the stars
Keep your feet on the ground and keep reaching for the stars. A good motto not just for pop music count-down shows but also, it turns out, for dung beetles.
Post to FacebookPosted!A link has been posted to your Facebook feed. Sent!A link has been sent to your friend's email address. A report published online in 'Current Biology' shows that even on the darkest of nights, African ball-rolling insects are guided by the soft glow of the Milky Way.(Photo: Current Biology, Dacke et al.)Story HighlightsDung beetles navigate by starlightThe observation is a first for insectsResearchers ran planetarium tests to check the findingKeep your feet on the ground and keep reaching for the stars, as radio personality Casey Kasem always said. A good motto not just for pop-music count-down shows but also, it turns out, for dung beetles.Biologists report that the lowly bugs, best known for rolling, burying and dining on dung, may share a navigational trick known until now only among birds, seals and people. In the Current Biology journal, a team led by Marie Dacke of Sweden's Lund University, report that dung beetles[1] follow straight paths on starry nights, but lose their way on overcast evenings.""Even on clear, moonless nights, many dung beetles still manage to orientate along straight paths," said Dacke, in a statement. The key to the dung beetle's navigation seems to be the Milky Way, the white splash of stars across the night sky that marks the center-line of our galaxy. Galaxies are vast circular and spiral shaped collections of stars, hundreds of billions of them in the Milky Way, scattered throughout the cosmos.The researchers wired up dung beetles in an arena inside a planetarium to determine how and whether the insects oriented themselves to the stars. "This…
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