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.

Monarchs traveled to a remote part of Mexico, a journey they've made for thousands of years, and wintered there. Now tens of ...

Scientists have recently mapped the painted lady butterfly's annual flight from equatorial Africa to northern Europe and back ...

Acts of creation are ordinarily reserved for gods and poets,” said Aldo Leopold in A Sand County Almanac. “But humbler folk may circumvent this restriction if they know how. To plant a pine, for ...

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

The Xerces Society for Invertebrate Conservation says, along the California coast, 4.5 million monarchs overwintered in the ...