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Banded mongooses structure monosyllabic sounds in a similar way to humans
Date:1/10/2013

This press release is available in German.

Animals are more eloquent than previously assumed. Even the monosyllabic call of the banded mongoose is structured and thus comparable with the vowel and consonant system of human speech. Behavioral biologists from the University of Zurich have thus become the first to demonstrate that animals communicate with even smaller sound units than syllables.

When humans speak, they structure individual syllables with the aid of vowels and consonants. Due to their anatomy, animals can only produce a limited number of distinguishable sounds and calls. Complex animal sound expressions such as whale and bird songs are formed because smaller sound units so-called "syllables" or "phonocodes" are repeatedly combined into new arrangements. However, it was previously assumed that monosyllabic sound expressions such as contact or alarm calls do not have any combinational structures. Behavioral biologist Marta Manser and her doctoral student David Jansen from the University of Zurich have now proved that the monosyllabic calls of banded mongooses are structured and contain different information. They thus demonstrate for the first time that animals also have a sound expression structure that bears a certain similarity to the vowel and consonant system of human speech.

Single syllable provides information on the identity and activity of the caller

The research was conducted on wild banded mongooses at a research station in Uganda. For their study, the scientists used a combination of detailed behavior observations, recordings of calls and acoustic analyses of contact calls. Such a call lasts for between 50 and 150 milliseconds and can be construed as a single 'syllable'. Jansen and his colleagues now reveal that, despite their brevity, the monosyllabic calls of banded mongooses exhibit several tempor
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Contact: Marta Manser
marta.manser@ieu.uzh.ch
41-446-355-282
University of Zurich
Source:Eurekalert  

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