Monarch butterfly navigating using the sun during migration across North America

The Butterfly GPS: How Do Butterflies Navigate Without Maps?

Imagine being given a mission to travel 3,000 miles across North America without a map, GPS, road signs, or directions—and somehow arriving at exactly the right destination. Every fall, monarch butterflies do exactly that. Despite having brains no larger than a grain of rice, monarchs complete one of the most extraordinary migrations in the natural […]

The Butterfly GPS: How Do Butterflies Navigate Without Maps? Read More »