23 to 7 millions of years ago, during the Miocene era, Amazonia was partially covered by seawater. Cetaceans were living in this area. When seawater has been definitely out of Amazonia ground, a species would have adapted to continue living in rivers, drawing the Amazonian landscape. This species became the Boto, known also as the biggest pink dolphin of Amazonia.
Continue reading“Brazil: The Boto, pink dolphin of Amazonia”