What's the deal with grasses and grains? We talk with Professor Steve Smith, an Associate Professor of Biology, Field Botany, and Sustainability in the School of Renewable Natural Resources and the Environment at the University of Arizona, about what makes grasslands such special and fragile ecosystems, the role of large ruminants on these landscapes, and the precise nature of grazing. Steve also shares his opinions on GMOs, and weighs in on the great grass vs grain debate.

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