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In the Light of Evolution: Volume II—Biodiversity and Extinction
the energy needed to construct large animals was divided among many species, whereas after the extinction much more of the planet’s total supply of energy became concentrated in one species (Homo sapiens) and its domesticates. Based on the historical chronologies of biomass transitions in various parts of the world, Barnosky draws several biological implications, including how the current depletion of fossil fuels as an energy source may translate into near-future challenges for global biodiversity.