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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.
"It's the white spots that seem to be the difference maker."
"It's the white spots that seem to be the difference maker."
"It's the white spots that seem to be the difference maker."