'The first dolphin of its kind:' Remains of ancient giant dolphin discovered in the Amazon.
Scientists Wednesday announced the discovery of the 16-million-year-old remains of the largest river dolphin ever found on ...
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Severe drought and warm waters killing dolphins in the Amazon river basin
More than a hundred dolphins have been found dead in a tributary of Amazon river in Brazil this past week. Experts suspect the deaths may have been caused by severe drought and rising heat.