動物在交流時經常會對彼此發出警報信號,用來信號警示周圍的同類附近存在的威脅。這是一種反捕食者適應,廣泛存在於社會性動物中。許多靈長類鳥類有複雜的警告聲音。昆蟲則會採用聲音以外的方式,比如釋放化學物質英語Schreckstoff

知更鳥會發出咔噠聲來警告同類

外部連結

Department of Systematics and Ecology, University of Kansas

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