Podcast: Bionic leaves that make fuel, digging into dog domestication, and wars recorded in coral

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Listen to stories on new evidence for double dog domestication, what traces of mercury in coral can tell us about local wars, and an update to a classic adaptation story, with online news editor David Grimm. Brendan Colón talks about a bionic leaf system that captures light and carbon and converts it to several different types of fuels with host Sarah Crespi. [Image: Andy Phillips/Flickr/CC BY-ND 2.0/Music: Jeffrey Cook]

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