ELLENSBURG, Wash. -

Central Washington University is deciding the future of its Chimpanzee Human Communication Institute.

After it opened in 1993 it housed five chimps that learned American Sign Language.

The death of a chimp named Dar in November leaves only two animals, Tatu and Loulis.

The Daily Record reports a report to the university president last week says Central has to decide whether to bring in more chimps or move the two remaining to a sanctuary.

Adding three to five chimps would cost nearly $2 million for remodeling. The report also notes the chimps bring tourists to Ellensburg and help recruit students to Central Washington University.