Evidence of Chimp Developing "Spoken" Language

testcase writes "The New Scientist has an article describing a bonobo who appears to have developed a simple vocabulary. Researchers who have analyzed recordings of the chimp have been able to identify four sounds he makes in different contexts indicating 'banana, grapes, juice and yes.'"

Comments

how is this any better than the hand signals?

[Unknown Poltroon]

Or the way i can tell what my dog wants by the tone of his bark? I dont see how this is sutch a breakthrough.