I believe that any creature capable of asserting personhood would be able to show indicia of moderately advanced civilization. If there were good evidence to b

I believe that any creature capable of asserting personhood would be able to show indicia of moderately advanced civilization. If there were good evidence to be uncertain, I could understand caution. I do not have such evidence regarding chimps. As best I can tell, the studies where they attempted to teach them sign language show otherwise.