Monarch butterflies with more white spots on their mostly orange-and-black wings are more successful at long-distance migration. Some scientists think the spots may affect airflow around their wings.

Monarch butterflies with more white spots on their mostly orange-and-black wings are more successful at long-distance migration. Some scientists think the spots may affect airflow around their wings.

The black swallowtail deserves to be chosen as state butterfly because it is “a full-time Michigan resident,” Meyer said— it’s the only species that can be found year-round and throughout ...

Researchers find that the white spots on the wings of monarch butterflies may help them fly farther. (Story first aired on All Things Considered on June 21, 2023.) Accessibility links ...

Monarch butterflies with more white spots on their mostly orange-and-black wings are more successful at long-distance migration. Some scientists think the spots may affect airflow around their wings.

Monarch butterflies with more white spots on their mostly orange-and-black wings are more successful at long-distance migration. Some scientists think the spots may affect airflow around their wings.