Who can talk?

Did you know about the experiments about chimpanzees? 

Kanzi is a Bonobo male from 31 years old who was born in Lorel (University of Emory), then he was moved to the Research Center of Languages in the University of Georgia. 
I actually come across this new in the psychology class, I though it was a nice topic to talk about. 

In short from the video we saw in class we can conclude:
Kanzi could communicate with someone who wasn't present (by phone call). And he recognized the voice after a few days.
He understads the concept of a promise and wants the people to make it happen.
He recognizes the feeling of being guilty and he has the hability of empaty.
He knows how to play with fiction; a brother of him has a mask of a monster and he runs away from it; just to play and for fun.
He also has the hability to planificate how to solve a problem and to find solutions. What's more he is able to make tools by him self.
He understands the order of the sentences when talking and the grammar.

In the video we could see all this and to communicate of course he didn't speak. He always had with him a machine which contained about 200 words. Everytime he pressed a button of it the machine would pronunce the word Kanzy meant. 

I found this curious and interesting to explain. We do know that chimpanzees are the most similar animal to us but I don't think everyone is aware about their capacities and the things they can do. 
If you want more information go to:
http://en.wikipedia.org/wiki/Kanzi 
http://www.dailymail.co.uk/sciencetech/article-2191964/Kanzi-bonobo-chimp-learns-create-tools--repeating-humanitys-steps-civilisation.html