The Language of the Astralapithesines

Wahho has the intelligence to use signs to convey her current mood and be able to visually understand signs directed towards her. She was able to form compound nouns to describe things, creating the phrase water bird to describe a swan. Washo had also taught signs to other chimpanzees, demo tating that chimpanzees do actually have the capacity to enhance and evolve a language through the generations. This would strongly suggest that lingual communication between astralapithesines was an absolute possibility. The one thing that the chimpanzee cannot do very well is to make the sounds that a modern human can make. If we were to assume that astrolapithesine had the intelligence, then did