Bleats and trills evolved multiple times to aid in 'caller ID'

Published: 24/08/2017
Bleats and trills evolved multiple times to aid in 'caller ID'
Source: WWW.SCIENCEDAILY.COM

Sheep, giant pandas, mouse lemurs, and fur seals all have something in common when it comes to communication. All of them produce calls with rapid, vibrato-like fundamental frequency modulation -- commonly known as bleats or trills. Now, researchers think they know why that call feature has arisen multiple times over the course of evolution: it improves the ability of listeners to detect call comp

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