One of nature’s epic events is underway: Monarch butterflies’ fall migration. Departing from all across the United States and Canada, the butterflies travel up to 2,500 miles to cluster at the same locations in Mexico or along the Pacific Coast where their great-grandparents spent the previous winter.
Click here for original story, Monarch butterflies’ spectacular migration is at risk, and an ambitious new plan aims to save it
Source: Phys.org