<< Here we report the first experimental evidence for compositional syntax in a wild animal species, the Japanese great tit (Parus minor). Tits have over ten different notes in their vocal repertoire and use them either solely or in combination with other notes. Experiments reveal that receivers extract different meanings from ‘ABC’ (scan for danger) and ‘D’ notes (approach the caller), and a compound meaning from ‘ABC–D’ combinations. However, receivers rarely scan and approach when note ordering is artificially reversed (‘D–ABC’). Thus, compositional syntax is not unique to human language but may have evolved independently in animals as one of the basic mechanisms of information transmission. >>
Toshitaka N. Suzuki, David Wheatcroft & Michael Griesser. Experimental evidence for compositional syntax in bird calls. Nature Communications 7, Article number: 10986 doi:10.1038/ncomms10986. Published 08 March 2016
http://www.nature.com/ncomms/2016/160308/ncomms10986/full/ncomms10986.html
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