Painted ladies are the ultramarathoners of the butterfly world—even more so than monarchs. Scientists have long known about ...

The butterflies’ resilience shows that some species are capable of adapting to dramatic changes in climate, food availability and urban development.

For many years, scientists had had difficulties studying migration in insects because of their size and experts’ inability to ...

much remains unknown about the migration of painted ladies. Does the observed pattern apply to the broad geographic distribution of the painted lady? Is this phenomenon unique to butterflies, or ...

This has helped biologists to track their migration routes. Butterflies without such well-defined aggregations are more difficult to track, however. For example, painted lady butterflies often ...