Bihorel, France (Kontax): Many animals use variation in their alarm calls to warn conspecifics about different predatory threats. Information about predators can be encoded by producing discrete types of alarm calls and/or through graded variation in a single call type (i.e. calling rate or note repetitions). For further details, please see: www.kontax.com/First_Research_Demonstrates_That_Birds_Can_Encode_Information_about_the_Type_of_Predator-14753-en.html
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