Monkeys can make "comments": World Science article
According to this story in World Science, researchers analyzed monkey calls
and determined that some of them could only be described as "comments."
http://www.world-science.net/exclusives/040901_commentfrm.htm
These were supposedly the first documented monkey calls that appeared to
make reference to a third party not involved in the vocal exchange. The
monkeys seemed to be making an observation or a comment about what they were
seeing, the researchers found.
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