Recently discovered Brazilian river dolphin’s calls could help us understand evolution of marine mammal communication

Mongabay
May 1, 2019, 4:22 pm306 pts
The Araguaian river dolphin was just discovered and described to science in 2014, so it’s no surprise that there’s a lot we don’t know about the cetacean native to the Araguaia and Tocatins rivers in Brazil. Until recently it was believed that the solitary nature of Araguaian dolphins meant that they…

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