Chimpanzee, one year birthday celebration


Zoe, a chimpanzee at the Oklahoma City Zoo, pulls on the ribbon of a treat during her one year birthday celebration at the zoo in Oklahoma City, Friday, Oct. 16, 2009. Her mother Abby is at left.



Zoe, a chimpanzee at the Oklahoma City Zoo, hitches a ride on her mother Abby's back, carrying the ribbon from a treat given for her one year birthday celebration at the zoo in Oklahoma City, Friday, Oct. 16, 2009.



Zoe, a one-year-old chimpanzee at the Oklahoma City Zoo, swings on a rope in the chimpanzee exhibit at the zoo in Oklahoma City, Friday, Oct. 16, 2009.