| http://www.w3.org/ns/prov#value | - ome kind of meaning to them, and use them to refer to objects and to refer to external things in the world,??? Janik said.Dolphins make a lot of vocalizations to communicate with each other, including echolocation clicks, whistles to attract other animals to food locations and other noises to indicate how aggressive or friendly they feel.The signature whistles are most often used by dolphins when
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