Social structure in elephant herds is surprisingly complex. The adults in the herd exhibit what scientists call "reciprocal altruism." That means that elephants will act in ways that give them no direct benefit—say, protecting or feeding a calf that isn"t theirs. They do that because the other elephants in their herd will do the same for them. Maybe the elephant is a good role model for Giving Tuesday?
Giving Tuesday
Today in History
More Desktop Wallpapers:
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Smithsonian Secretary Lonnie Bunch on the institution s 175th anniversary
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Borovets ski resort in Bulgaria
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Replica of a Viking home in Dublin National Botanic Gardens, Ireland
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The Grand Départ: Tour de France begins
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World Meteorological Day
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A gentle wind fills this sail
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Salt evaporation ponds on the island of Gozo, Malta
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Enter the magical world of Livraria Lello
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A rest stop for the birds
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It s Census Day—make it count
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The Pearl of Siberia
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National Bison Day
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Wild scene on the Merced River
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Road-trip worthy attraction in the heartland
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A path into history
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Trullo buildings in Alberobello, Apulia, Italy
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What s going on in this sky?
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Milford Sound/Piopiotahi rainforest in New Zealand
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The power of the forest
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Infrared Jupiter, erupting Io
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National Blueberry Day
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Basking in the glow
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A showcase for future fame
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Eye of the cave
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Harbor and longtail boats at Ko Samui, Thailand
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Presidents Day
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Horsetail Fall, Yosemite National Park, California
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Mountain hare hopping into Lunar New Year
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Death Valley National Parks Anniversary
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Road-trip worthy attraction in the heartland
Bing Wallpaper Gallery

