The Living Planet S01E08 - Sweet Fresh Water

David Attenborough follows the river Amazon from the Andes to the sea. The life in and around it changes as it flows on its four-thousand mile journey from cold torrents to a vast warm delta. There are similarchanges in other rivers, producing such variety as torrent ducks, mayflies, hairy frogs, piranhas, giant otters, fishing owls and the Marsh Arabs of Iraq.