00:00What do you think about Rio Nuco?
00:05So, these species of Rio Nuco and Amazonia
00:12can be separated from some geological processes
00:17that keep them isolated.
00:20So, today we have a connection between the two Cuencas,
00:24which is the Caciquiari Canal, which connects Rio Nuco
00:29to an important drainage of the Cuenca de Amazonia,
00:32which is the Rio Negro.
00:34We don't know when this channel exists
00:38if it was possible to migrate between the Amazonas
00:43and the Cuenca de Orinoco
00:44or if there was any other channel that made
00:49the Amazonas migrate to the Cuenca de Orinoco.
00:53At some point, the Cuenca de Orinoco was colonized
00:56by the Delfines, and at some point,
00:59these Delfines from here
01:00adapted to this environment
01:02and stopped for a while to cross
01:05with the Cuenca de Amazonia.
01:08the Cuenca d'orinoco.
01:09It can be cancelled!
01:09The Cuenca de Orinoco
01:09The Cuenca de Orinoco
01:10The Cuenca de Orinoco
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