Butterfly counts and flowering times shift earlier in warmer, low-snow years. Volunteers now lead Mt. Rainier surveys after federal research funding ended. Butterflies serve as effective indicators of ...

A monarch butterfly carrying a tiny tag developed by Cellular Tracking Technologies at the Cape May Point Arts and Science Center in Cape May Point, N.J., Nov. 12, 2025. Scientists used tiny new ...

Even when the weather blows them off course, tagging has shown that many butterflies can get back on track and keep heading south. After migrating, they overwinter in cool, moist places, resting to ...

For the first time, scientists are tracking the migration of monarch butterflies across much of North America, actively monitoring individual insects on journeys from as far away as Ontario all the ...