{{Dr Catherine Hobaiter from the University of St Andrews, who led the research, said that this was the only form of intentional communication to be recorded in the animal kingdom.
Only humans and chimps, she said, had a system of communication where they deliberately sent a message to another individual.
“That’s what’s so amazing about chimp gestures,” she told media.
“They’re the only thing that looks like human language in that respect.”}}
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