Photos: Behind the scenes of Australian zoo
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Credit: Getty Images
DUBBO, AUSTRALIA - APRIL 20: "Happy" the hippo waits to have his tusks filed by keeper Anthony Dorrian at Taronga Western Plains Zoo on April 20, 2012 in Dubbo, Australia. The popular 35 year old Dubbo zoo is set in 3 square km of bushland and is home to over 700 animals. (Photo by Mark Kolbe/Getty Images)
