1. 
   La Plata river dolphin
   (from the article `river dolphin`) The smallest river dolphin species, the La Plata river dolphin (Pontoporia blainvillei), also lives in South America. Also known as the franciscana, ... ...was replaced with a homodont dentition in which every tooth is a simple cone. The number of teeth varies amon...
   Found op http://www.britannica.com/eb/a-z/l/2
   
   

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