Monarch butterflies are making their annual journey north out of Mexico to their summer breeding grounds. See where they've been spotted in Oklahoma.

Monarch butterflies left Mexico weeks ago on their annual northward migration. Now, the colorful insects are nearing Michigan as temperatures continue to warm. "Monarchs have made their way north ...

Monarch butterflies are returning to Michigan for the summer after migrating from Mexico. Michiganders can support monarch butterflies by planting milkweed, tracking sightings, and donating to ...

The annual migration of monarch butterflies is one of science's great mysteries: millions of monarchs know the correct path even though they have never made the long journey themselves. As 60 ...

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 the only butterfly species known to make a two-way migration, traveling both north and south each year. During this journey, the monarch butterfly flies through Arkansas ...

Monarch butterflies have begun fluttering across Michigan after a migration that began in Mexico. The brightly colored insects have been reported in southeast Michigan, migration watchers say.