How monarch butterflies fly away home
Monday, July 26, 2010 - 13:35
in Biology & Nature
Some North American monarchs born in the Midwest and Great Lakes fly directly west over the Appalachians and settle along the eastern seaboard. This finding is the first proof of longitudinal migration and solves the long-standing mystery of why monarchs always show up later on the east coast compared to the interior. The study also suggests conservation efforts must target the Great Lakes region.