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Pages 3-6

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From page 3...
... Even so, they developed a dizzying array of strategies for survival, feasting on sunlight or chemicals -- and expelling oxygen into the atmosphere that set the stage for all of us to be breathing right now -- as they bobbed or swam through the ocean. The emergence of multicellular organisms fueled an explosion of life forms, eventually bringing forth plants, fungi, and animals that colonized the land and adapted to its every nook and cranny.5 Over many millions of years, Earth's biodiversity has seen major waves of expansion and extinction,6 with countless species from skittering crustaceans to lumbering dinosaurs arising and disappearing.
From page 4...
... Ecosystems -- networks of organisms that function together with their physical environment -- burst with life in every spot on Earth, from deep ocean trenches to soaring mountain peaks. In your own body dwell trillions of microbes that help you digest food and fend off disease-causing pathogens.7 Along shorelines, vast underwater meadows of seagrass offer shelter and nursery grounds for countless marine animals, including the dugong, or "sea cows," that serenely graze upon them.8 In desert oases, rare and remote species quench their thirst9 underneath ancient rock paintings depicting the life that thrived there thousands of years ago.
From page 5...
... Many Indigenous people emphasize the intrinsic value of all life; some have devised rituals and taboos that preserve natural sites and the biodiversity they contain. U'wa communities in Colombia, for example, follow strict rules, including taking only fallen fruit, never cutting some trees, hunting certain animals at precise times of the year, and allowing only shamans to enter sacred areas.14 In addition, major world religions hold tenets that humanity is not separate from nature, and therefore must protect it.
From page 6...
... species named so far18 7–18 million estimated species yet to (* does not include bacteria)

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