Israeli scientists eavesdrop on marmosets and find they take turns 'talking' and labeling each other with specific calls, a first among non-human primates
https://www.haaretz.com/science-and-health/2024-08-29/ty-article/surprised-bob-marmoset-monkeys-give-each-other-names/00000191-9837-d302-add5-9bb7d3960000