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    Animal Tracks: Aug. 18 - 25

    A curious monkey, two cozy polar bears, and more of this week's best animal photos

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    High five -

    A cat plays in the animal centre in Hanover, Germany, on Aug. 22.
    Julian Stratenschulte / Zuma Press
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    Gopher a walk -

    A Squirrel on a paved road in Company Gardens, a heritage site located in the city center of Cape Town, South Africa, on Aug. 22.
    Schalk Van Zuydam / AP
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    Happy panda -

    Panda Mei Xiang munches on a snack during her baby Bao Bao's first birthday ceremony at the National Zoo in Washington, DC, on Aug. 23.
    Mandel Ngan / AFP - Getty Images
  • Animal Tracks: Aug. 18 - 25

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    Sweet dreams -

    8-month-old polar bear twins Nobby and Nela sleep in their enclosure of the Tierpark Hellabrunn Zoo in Munich, Germany, on Aug. 22.
    Stephan Jansen / AFP - Getty Images
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    Did you get my good side? -

    An Ukrainian Levkoy purebred cat poses for a photographer at a fair in Leipzig, Germany, on Aug. 24.
    Hendrik Schmidt / AFP - Getty Images
  • Animal Tracks: Aug. 18 - 25

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    Ready for a picnic -

    A Javanese leopard cub named Pelangi is presented at the Tierpark Zoo in Berlin, Germany, on Aug. 22.
    Wolfgang Kumm / EPA
  • Animal Tracks: Aug. 18 - 25

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    Adopted -

    A female dog feeds two-day-old tiger cubs and her puppy at a zoo in Hefei, China, on Aug. 22.
    Jianan Yu / Reuters
  • Animal Tracks: Aug. 18 - 25

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    Cooling down -

    A monkey chews ice-cream in a pond surrounded by carps at a zoo in Hefei, China, on Aug. 22.
    Jianan Yu / Reuters
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    Don't be fooled - he's a natural blonde -

    Cooper the dog poses for a portrait during the Irish Redhead Convention in County Cork, Ireland, on Aug. 23.
    Cathal Mcnaughton / Reuters
  • Animal Tracks: Aug. 18 - 25

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    Fish kiss -

    Zoo owner Manny Tangco gives a kiss to a giant Japanese Koi carp while children watch, as part of the zoo's newest attraction dubbed "The World of Kois", in Malabon City, Manila, on Aug. 22.
    Romeo Ranoco / Reuters
  • Animal Tracks: Aug. 18 - 25

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    Head-to-head -

    Elephants nuzzle trunks in their enclosure at a zoo in Muenster, Germany, on Aug. 18.
    Patrik Stollarz / AFP - Getty Images
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    Hope he doesn't spit! -

    Keeper Jack Sargent measures Perry, a 6-foot-tall llama, during the annual weigh-in at the London Zoo, on Aug. 21.

    Over 800 zoos and aquariums in nearly 80 countries submit animal measurement data to the Zoological Information Management System so zoologists can compare information on thousands of endangered species around the world.
    Oli Scarff / Getty Images
  • Animal Tracks: Aug. 18 - 25

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    My, what long legs you have -

    A 'jungle nymph' is measured during the annual weigh-in at the London Zoo, on Aug. 21.
    Oli Scarff / Getty Images
  • Animal Tracks: Aug. 18 - 25

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    Blending in -

    A leopard walks towards a lagoon at Yala National Park in Sri Lanka, on Aug. 21.
    Dinuka Liyanawatte / Reuters
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    Curious George -

    A squirrel monkey looks into the camera at the London Zoo, on Aug. 21.
    Kirsty Wigglesworth / AP
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    Hoo, me? -

    Max, an eagle owl, is weighed during the annual weigh-in at the London Zoo, on Aug. 21.
    Oli Scarff / Getty Images
  • Animal Tracks: Aug. 18 - 25

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    Fast draw -

    A hummingbird flies in a garden in Pereira, Colombia, on Aug. 20.
    Luis Acosta / AFP - Getty Images
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    Horseplay -

    A Hucul horse of the Experimental Institute for Animal Production frolics on a pasture in Rudawka Rymanowska, Poland, on Aug. 19.
    Darek Delmanowicz / EPA
  • Animal Tracks: Aug. 18 - 25

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    Lazy day afternoon -

    A Siberian tiger dozes in its enclosure at the Muenster Zoo in Germany, on Aug. 18.
    Patrik Stollarz / AFP - Getty Images
  • Animal Tracks: Aug. 18 - 25

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    The mighty jungle -

    A lion sits and watches visitors in its enclosure at the Muenster Zoo in Germany, on Aug. 18.
    Patrik Stollarz / AFP - Getty Images