Scientists crack secrets of the monarch butterfly’s internal compass
Monday, April 18, 2016 - 19:40
in Biology & Nature
Each fall, monarch butterflies across Canada and the United States turn 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 […]