The fossil of a freshwater river dolphin that lived 5.8 – 6.1 million years ago has been found in Panama. Life reconstruction of Isthminia panamensis, feeding on a flatfish, which would have been abundant in the neritic zone of the late Miocene equatorial seas of Panama. Image credit: Julia Molnar. The fossil, which is that of a new genus and species, was found on the Caribbean coast near the town of Piña. It consists of half a skull, lower...
