The vivid hues show up as the green chlorophyll breaks down in cooler weather, says associate professor of biology George Ellmore
The Tufts Now video series Ever Wonder features faculty and other experts answering questions about which we all have wondered—everything from why people laugh to why cats purr.
You can view the entire series at http://everwonder.tufts.edu, and submit your own questions there, too.
Steffan Hacker can be reached at steffan.hacker@tufts.edu.
