Rosebud is the matriarch of the chimpanzee group here at the Saint Louis Zoo. She came to the Zoo from Busch Gardens Tampa Bay in 2007. Rosebud, or Rosie, as the keepers call her, was immediately loved by the other chimpanzees and really enjoys being outside. She is approximately 49 years old and the mother of our soon-to-be new mom, Utamu. Rosie has a very high social ranking in the chimpanzee group even at her advanced age.