By posing for us, are these red-billed oxpeckers imposing on the impala? Well, science hasn"t quite decided on this one. The relationship between parasite-eating birds and hoofed mammals was once considered a textbook example of mutualism, with oxpeckers cleaning up the ticks and fleas that bug the bigger beasts. Which is what we"d like to think is going on here.
Relationship status: It s complicated
Today in History
More Desktop Wallpapers:
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Water colors
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Diving into the underwater nirvana
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World Population Day
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Edinburgh Castle, Scotland
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Badlands National Park turns 44
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Ceremony Hall at Sweden s Icehotel
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Skógafoss waterfall, Iceland
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International Tea Day
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The ruins of a Maya superpower
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A field of English lavender
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Glenariff Forest Park, Northern Ireland, UK
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Honoring the rangers on World Ranger Day
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Helsinki, Uusimaa, Finland
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Seasonal lights dazzle in Japan
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Alstrom Point, Lake Powell, Utah
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Walton Lighthouse, Santa Cruz, California
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National Cherry Blossom Festival
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Happy Cinco de Mayo!
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Protect your neck
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A crested partridge
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National Hispanic Heritage Month
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Notre-Dame Cathedral reopens
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Travel Sunday: Liverpool
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The last thing seen by Wile E. Coyote
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Happy Thanksgiving!
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Guild houses of Grand-Place, Brussels, Belgium
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A city of bridges
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Happy Astronomy Day!
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Vatican City with St. Peters Basilica
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World Heritage Day
Bing Wallpaper Gallery

