Monarch butterflies’ white spots may help them fly farther, scientists say

Researchers suggest monarch butterflies’ white spots may help them fly farther during migration.

New idea: A team of scientists analyzed hundreds of monarch wings and found a potential correlation between larger white spots and successful migration to Mexico.
* Researchers believe that the color pattern may interact with sunlight to create subtle temperature differences on the wing, altering airflow and aiding flight.

Skepticism and further research: Some butterfly scientists have expressed enthusiasm for the new idea, while others remain skeptical and want more aerodynamic measurements.
* Researchers are working on experiments with flapping real butterfly wings in a test chamber to track air movement around the wings.

Context: Monarch butterflies undertake an annual fall migration of up to 3,000 miles from Canada to Mexico.
* The next total lunar eclipse will occur on March 14, 2025.

View original article on NPR

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