Washoe had lived at Central Washington University since 1980; on October 30, 2007, officials from the Chimpanzee and Human Communication Institute on the CWU campus announced that she had died at the age of 42.
Washoe žila od roku 1980 na Central Washington University; 30. října 2008 představitelé Institutu komunikace mezi šimpanzi a lidmi oznámili, že ve věku 42 let zemřela.