Monarch butterflies travel throughout their short lifespan. Shutterstock.

3. Monarch Butterflies Don’t Have Long Lifespans

One fact that you need to understand when you read about the study performed by scientists that focus on monarchs is that they don’t have a long lifespan. Once they hatch, they only live another 2 to 6 weeks. 

This means that one monarch butterfly will travel about 1,400 to over 4,000 miles in their lifespan, depending on how long they live. While this means that once you see one butterfly, you will never see the same one again, it also means that they travel a very long distance for their short lifespan.