Alice Roberts Quotes
Evolutionary biologists have long pondered the phenomenon of the changing colours of autumn leaves. It's possible that the red pigments are manufactured in the leaf as a side-effect of something else that's happening at this time.
Citations
Roberts, Alice. "The science of autumn leaves." The Guardian, Guardian News & Media, 2013.
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Alice May Roberts FRSB (born 19 May 1973) is an English biological anthropologist, biologist, television presenter and author. Since 2012 she has been Professor of the Public Engagement in Science at the University of Birmingham. Since 2019, she has been President of the charity Humanists UK, which campaigns for state secularism and for "a tolerant world where rational thinking and kindness prevail".