Fallow deer are all about the bass when sizing up rivals

During the deer's breeding season, or rut, the researchers from Queen Mary University of London (QMUL) and ETH Zürich, played male fallow deer (bucks) in Petworth Park in West Sussex, a variety of different calls that had been digitally manipulated to change the pitch and length and analysed their responses. The bucks treated lower pitched and longer calls as more threatening, by looking towards source of the call sooner and for longer, than others.

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