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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The crossroads of empires
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Alam-Pedja Nature Reserve, Estonia
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Cloughoughter Castle, County Cavan, Ireland
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Christmas star lanterns, Germany
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Reflecting on Black History Month
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Here’s why landmarks are going dark
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Composite of photographs from the Apollo 15 mission
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National Mushroom Month
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Bridge of Hillsborough County
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Black History Month
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Veterans Day
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International Day for Biological Diversity
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Solar Impulse 2 in Honolulu
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The Unfinished Obelisk near Aswan, Egypt
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Halloween
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Floating temples in the Land of Smiles
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Amber Fort, Jaipur, Rajasthan, India
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Hezké svátky
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National Roller Coaster Day
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Bernina Pass, Graubünden, Switzerland
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Russell lupines, Lake Tekapo, New Zealand
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World Reef Awareness Day
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The first ascent
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Bardenas Reales Biosphere Reserve and Natural Park, Spain
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Poppies for Armistice Day
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The puffin-rabbit connection
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Spectacular views below!
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A yearly sign that spring has sprung
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Palace of Westminster, London, England
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Almond trees in full bloom, California
Bing Wallpaper Gallery

