Vocal recognition of individuals and kin in free-ranging rhesus monkeys

Article Abstract:

The adult female rhesus macaque, Macaca mulatta, shows an ability for vocal recognition of both individuals and kin. Playback experiments show that single-trial playbacks of a matrilineal relative lead to significantly faster and longer responses as compared to calls of non-kin. Females habituated to successive presentations of various exemplars of one matrilineal relative's contact calls show a significant rebound in response to contact calls from a second matrilineal relative. The response to playbacks suggests a categorical recognition of matrilineal kinship.

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Vocal mate recognition in a monogamous, flock-forming bird, the silvereye, Zosterops lateralis

Article Abstract:

The eastern silvereye, Zosterops lateralis, who preserve pair bonds within mobile foraging flocks, can identify mates using vocal cues. Male and female silvereyes recognize their mates when introduced to calls of three different categories, mate, familiar, and stranger. Each contact call exhibits ample individuality in call structure which enables individuals to be differentiated statistically. Non-mate calls fail to evoke significant responses.

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Mother-offspring vocal recognition in northern fur seals is mutual but asymmetrical

Article Abstract:

A new study investigates mother-offspring recognition in northern fur seals and identifies it as being mutual but asymmetric within dyads.

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