There are many things to love about fall : football weekends, apple cider doughnuts, that first genuinely crisp morning when you can finally break out a sweater, and, of course, the foliage. One day, the landscape is overwhelmingly green. Then, seemingly overnight, the leaves start showing off—yellow, orange, red and even deep purple. It’s a transformation we marvel at every year, but how often do we stop to ask what’s actually happening? It turns out that behind all that seasonal color is a carefully timed process that helps trees prepare for winter. In other words, there’s more to that fall foliage than meets the eye. To find out what’s really happening when leaves put on their annual fall show, I spoke with Jason Grabosky, PhD, a professor in the Department of Ecology, Evolution and Natural Resources at Rutgers University, and Jessica A. Savage, PhD, an associate professor in the Department of Biology at the University of Minnesota Duluth. Read on for t...
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