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
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Molokini Crater, Maui, Hawaii
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Aerial view of a heart-shaped field in Trittau, Germany
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Ahh-tumn
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Oktoberfest, Munich, Germany
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Málaga, Spain
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And the skies filled with bats…
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Hen Galan
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A rest stop for the birds
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Books for children of all ages
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Tasmans Arch, Tasmania, Australia
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Pasadena Chalk Festival supports local arts education
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Brown bears in Lake Clark National Park and Preserve, Alaska
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International Mountain Day
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It s Teacher Appreciation Week
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Bird s-eye view on World Environment Day
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Salar de Uyuni in Bolivia
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3,000 years of history
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A path lain with petals
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Grand Teton National Park
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Martin Luther King Day
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The puffin-rabbit connection
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Three Musketeers Falls at Iguazú Falls, Argentina
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1934 Labor Day parade, Gastonia, North Carolina
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A desert arts pop-up, just popped up
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Point Reyes National Seashore
Bing Wallpaper Gallery

