Skip to content
Advertisement

In this July 22, 2012, file photo, a Monarch butterfly eats nectar from a swamp milkweed on the shore of Rock Lake in Pequot Lakes, Minn. A new study published in the journal Nature Communications suggests that monarch butterflies use an internal magnetic compass to help navigate on their annual migrations from North America to central Mexico. (AP Photo/Ann Heisenfelt, File)

In this July 22, 2012, file photo, a Monarch butterfly eats nectar from a swamp milkweed on the shore of Rock Lake in Pequot Lakes, Minn. A new study published in the journal Nature Communications suggests that monarch butterflies use an internal magnetic compass to help navigate on their annual migrations from North America to central Mexico. (AP Photo/Ann Heisenfelt, File)

Featured Photo Galleries