In this segment, Rick showed Cory the science behind those paper butterflies that can fly. The two also learned how to make them.

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.

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 ...