Snapshot
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Ancient bond between humans and dogs revealed in isotopic signatures of their bones
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Alarming number of fledgling, suburban catbirds fall prey to domestic cats, study finds
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JoGayle Howard, National Zoological Park pioneer in reproductive biology, dies
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Madam C.J. Walker, Hair Product Tin, 1925
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Gulf of Mexico survey will benchmark diversity of ocean floor
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New archaeological evidence reveals California’s Channel Islands as North America’s earliest seafaring economy
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Tiny creatures collected 100 years ago confirm accelerating carbon uptake in Antarctic Ocean
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Mystery of the quiet Sun solved
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Tyrannosaurus rex more hyena than lion
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Suffrage Sash, c. 1910