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Dr Omer believes the
could shed
on how human language evolved. He said: "Until quite
, people thought that human language was a
phenomenon that popped out of
. We're starting to see evidence that this is not the
." Omer postulated how marmosets developed a system of name calling. He said: "Marmosets live in small, monogamous family groups, and take care of their
together, much like humans do. These similarities suggest that they faced comparable
social challenges to our early pre-linguistic
." Other creatures known to identify others in their group by
are dolphins and elephants.
