Science Nation - Evolution in Action

submitted by: nsf
Professor Lawrence Gilbert and his team at the University of Texas at Austin have discovered a population of tropical butterflies that exemplify "evolution in action," and a rare research opportunity. Gilbert says they may be witnessing a species of butterfly splitting into two different species. For more information and more ScienceNation videos, go to http://www.nsf.gov/news/special_reports/science_nation/index.jsp