Extinct freshwater dolphin from the Amazon was largest of all time

A dolphin that lived in the Amazon 16 million years ago grew to a length of 3.5 metres – larger than any other freshwater dolphin

​A dolphin that lived in the Amazon 16 million years ago grew to a length of 3.5 metres – larger than any other freshwater dolphin A dolphin that lived in the Amazon 16 million years ago grew to a length of 3.5 metres – larger than any other freshwater dolphin