Jacqueline Eide is being treated at Creighton University Medical Center after a tiger bit her early Sunday morning.
Police say Eide was intoxicated when she went into an unauthorized area at about 7:20 AM to pet the animal.
Staff members tell police she was aggressive toward them when they tried to help.
They believe Mai, an 18-year-old Malayan tiger, was the animal which bit her.
Eide suffered a severe injury to her left hand.