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An orangutan smells a stalk of flowers at its enclosure of the Buenos Aires Zoo September 21, 2006.
Zookeepers placed flowers in the animal cages and prepared special meals to celebrate the beginning of the Spring season in the Southern Hemisphere.
REUTERS/Enrique Marcarian (ARGENTINA)

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A white Bengal tiger approaches stalks of flowers at its enclosure in the Buenos Aires Zoo September 21, 2006.
Zookeepers placed flowers in the animal cages and prepared special meals to celebrate the beginning of the Spring season in the Southern Hemisphere.
REUTERS/Enrique Marcarian (ARGENTINA)