It's Boston local news in one concise, fun and informative emailThank you! You have been subscribed to WBUR Today.We were unable to subscribe you to WBUR Today. You can try subscribing here or try again later.
Researchers in Massachusetts and Wisconsin are comparing modern flower blooming data with notes made by Henry David Thoreau and Aldo Leopold. The sight of irises blooming during a Boston winter helped spur the research. (Darlyne A. Murawski/Getty Images/National Geographic Creative)