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
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Cue up the tango music
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Bird’s-eye view of the Golden Gate Bridge, San Francisco, California
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Two rocks and a heart spot
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Duck, duck. duck, duck, duck...
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It s Asian Pacific American Heritage Month
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Over the boardwalk
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Cuban tody, Alejandro de Humboldt National Park, Cuba
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Have fun storming the castle
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Native American Heritage Day
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Brain coral
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National Museum of African American History and Culture
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The Canary Islands, Spain
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Anniversary of Bryce Canyon National Park
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What, no escalator?
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Mardi Gras
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Land ho in New Zealand 250 years ago
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When science looks like magic
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Kochia, Hitachi, Ibaraki prefecture, Japan
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Leaves of Grass
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Summer winds down in the Hamptons
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Honoring our veterans
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Put your flippers in the air…
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San Gimignano, Siena Tuscany, Italy
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Patriot Day
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Ad-Deir, Petra, Jordan
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World Teachers Day
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Umschreibung by Olafur Eliasson in Munich
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A theatrical dream
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Harvest time in the Palouse
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The Lena Delta Wildlife Reserve in Siberia, Russia