UW News

Eli Shlizerman


April 14, 2016

Scientists crack secrets of the monarch butterfly’s internal compass

Monarch butterflies.

Each fall, monarch butterflies across Canada and the United States┬áturn their orange, black and white-mottled wings toward the Rio Grande and migrate over 2,000 miles to the relative warmth of central Mexico. This journey, repeated instinctively by generations of monarchs, continues even as monarch numbers have plummeted due to loss of their sole larval food…