Earthwatch caterpillars

Learn about Dr. Lee Dyer's Earthwatch caterpillar-climate change project at Sagehen that brings high school students into the field to help the University of Nevada at Reno scientists with their research.

Project sponsored by the Durfee Foundation.

Why are there so many butterflies around all of a sudden?

UC Berkeley Ph.D. Candidate Ryan Hill explains the sudden appearance of butterflies in the Sierras every spring.

Copyright: 2007, UC Regents

04:30

Watch on YouTube [below], or download a higher-res version here: Mac [.mov-9.6MB]