Monarch butterflies are making their flight north after wintering in Mexico. Here's what to know about one of Earth's fascinating flyers in Michigan.

For thousands of years, millions of monarch butterflies have migrated from the northern U.S. and Canada to Mexico for the winter. But exactly how they know where to go is still a mystery.

Monarch butterflies are migrating through San Antonio, laying eggs on milkweed, while other species like the Gulf fritillary ...

Monarch Butterfly ... favorites like Zinnias, Mexican Sunflowers, Lavender Hyssop, and Purple Coneflowers. Clusters of nectar plants create bold color blocks that butterflies can spot in flight ...