Ruth used to be the outcast of the troop. When she first came to us she was significantly smaller than the others and would turn her head repeatedly (probably due to neurological issues or nervous condition) that earned her the nickname "head-spinner".
She still gets nervous easily, but at some point became the alpha in the main troop. She now asserts herself over everyone, so much so that we had to remove a few other females and put them in a separate enclosure. She is also very pushy with her CAREtakers when they have treats and will pester you until you give her what she wants. She has a single baby named Stella who is quite attached to her mom. They are never found far away from each other.