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  • Why Societies Collapse? – Jared Diamond (2003)

    Why Societies Collapse? – Jared Diamond (2003)

    Jared Diamond examines how societies collapse in a five-point framework: [1] Impact on environment, [2] Climate change, [3] Relations with friendly neighbors, [4] Relations with unfriendly neighbors, [5] Perception and resolution of environmental problems. Diamond is the author of  a Pulitzer prize winner book Guns, Germs, and Steel: The Fates of Human Societies, published in 1997. He seeks to explain Eurasian hegemony throughout history. Using evidence from ecology, archaeology, genetics, linguistics, and distinct historical case studies, he argues that the differences in social structure and technology among human societies do […]

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  • The Botany of Desire – Michael Pollan – PBS (2009)

    The Botany of Desire – Michael Pollan – PBS (2009)

    Domestication is a defining feature of recent human evolution. In animals first trait selected by humans was behavior. In plants harvestability through selection of non-shattering seeds was the first trait of domestication. Plant domestication paved the way to agriculture which enabled highly specialized sedentary human societies. Domesticated plants differ from their wild ancestors in distinct ways that can be categorized under a term called as the domestication syndrome. Domestication syndrome includes reduced shattering of seeds (seeds don’t separate from the […]

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  • The Passionate Wait

    The Passionate Wait

    In the second part of the passion flower series events before the opening of the flowers are outlined. Drought conditions in summer of 2011 made extrafloral nectaries of the plant a very busy place. The water budget of the plants is strongest early in the morning. Flowers do not open until the middle of the day. At first, passion flower is generous to the ants in the morning providing ample volume of nectar. On the other hand, pollinators remain hungry. […]

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