This video segment from Evolution: "Evolutionary Arms Race," illustrates the coevolution of the leafcutter ant and the fungi on which it feeds. Leafcutters have been "farming" this fungus for millions of years, feeding, fertilizing, weeding, and harvesting it. Learn how one graduate student's seemingly far-fetched idea led to the discovery that this symbiotic relationship involved at least two more, previously unaccounted for, species. Featured participants: Ted R. Schultz, Ulrich G. Mueller, and Cameron R. Currie.
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