Koko Signs “Chase” to Penny while in the play yard.
Koko Signs “Chase”
Created On:
Posted On:
Photographer: Penny Patterson
Source: Katherine So
![](https://www.koko.org/wp-content/uploads/2010/03/020118_KokoSignsChase.jpg)
Created On:
Posted On:
Photographer: Penny Patterson
Source: Katherine So
Koko Signs “Chase” to Penny while in the play yard.
© 2023 The Gorilla Foundation / Koko.org