Think of a monarch butterfly, and a distinctive image pops up: black-and-orange wings, with a sprinkling of white spots around the black edges. Those white spots may actually help monarchs complete ...

MEXICO CITY (CN) — The yearly migration of monarch butterflies might best be described as a round-trip relay race. Multiple generations of butterflies are born, reproduce and die along the journey.

Each year, millions of monarch butterflies migrate across eastern North America to fly from as far north as the U.S.-Canadian border to overwinter in central Mexico—covering as much as 3,000 miles.

Scientists have long wondered how butterflies fly -- compared with other flying animals, the creatures have unusually short, broad and large wings relative to their body size. Now, experts have found ...

A new study confirms that while the eastern and western butterflies fly differently, they are genetically the same. Each year, millions of monarch butterflies migrate across eastern North America to ...