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Thursday, May 23, 2013 | 4:57 p.m.

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Photos: Doctors remove 40-lb hairball from tiger (GRAPHIC)

Photos: Doctors remove 40-lb hairball from tiger (GRAPHIC)

A 400-lb tiger named Ty, 17, underwent surgery in Clearwater Wednesday to remove a 40-pound hairball the size of a basketball.

Pittsburgh Zoo animal pics

Pittsburgh Zoo animal pics

WPXI is the official TV partner of the Pittsburgh Zoo & PPG Aquarium!