6: Acacia Tree-dwelling Ants

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Dr. Stefanie Kautz examines the unusual relationships acacia ants form with their host plant—the acacia tree. While some species are parasites, others protect the tree and are rewarded with shelter and extra food. This is the sixth installment in a series of video journals by Dr. Corrie Moreau and her team documenting their 2012 expedition to catalog and study ant diversity in Costa Rica's Guanacaste region.