1. Anthropologists have studied the idea that human beings can create communities that are sustainable, equitable, and resilient by observing, following, and respecting patterns in nature. In the book, Mexican Americans and the Environment, Peña (Chapter 2) describes this as cases wherein "humans are acting as the keystone species". Write an essay in which you describe a future world in which we are all acting like keystone species. What would that world look like? You will have to define several concepts including sustainability, resilience, keystone species, traditional environmental knowledge (TEK), and anthropogenesis to answer fully.