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Researchers say marmoset monkeys call [each / one] other by name, similar to how humans [recognition/ recognize] each other. The 20-cm-long primates are [nativity / native] to South America. Scientists from the Hebrew University of Jerusalem studied the [socially / social] interaction of 10 marmosets. The research team discovered that the animals used [unique / uniquely] calls for other monkeys in their group. Dr David Omer, co-author of the study, said marmosets are the first non-human [primitives / primates] known to use names. The researchers put the marmosets in a [various / variety] of [pairings / parings] . They then used artificial intelligence to analyze more than 50,000 monkey [callers / calls] . This allowed the scientists to [determine / detrimental] the animals had names for each other.

Dr Omer believes the findings could [cabin / shed] light on how human language [revolved / evolved] . He said: "Until quite recently, people thought that human language was a singular [phenomena / phenomenon] that popped out of [nothing / anything] . We're starting to see evidence that this is not the case." Omer postulated [how / what] marmosets developed a system of name calling. He said: "Marmosets live in small, [monogamy / monogamous] family groups, and [give / take] care of their young together, much like humans [have / do] . These similarities suggest that they faced comparable evolutionary social challenges [for / to] our early pre-linguistic ancestors." Other creatures [known / unknown] to identify others in their group by name are dolphins and elephants.