Monarch Butterfly
Interesting fact: Monarch butterflies are the only insect to migrate up to 2,500 miles to get out of the cold weather and hibernate. But not all monarch butterflies migrate; only the fourth generation of monarchs can migrate each year because the first three generations die after about six weeks from escaping their cocoons. The fourth generation continues to live on for up to six or eight months so that they can migrate to a warmer climate, hibernate, and then start a new first generation in the spring time. I did not know that! Source: monarch-butterfly.com
