Hippos, elephants, lions and buffalo are drawn to the Zambezi's wild waters, which grow from a tiny trickle in Zambia to the thundering Victoria Falls.
The Danube River, which stretches from the Alps to the Black Sea, supports a surprising range of wildlife and is coping with years of human impact. (2 of 3)
The Yukon River boasts one of the longest salmon runs in the world; from musk ox to ice bears, there is a rich variety of life that call this frozen river home.
David Oyelowo
Narrator
Mark Flowers
Producer
James Honeyborne
Roger Webb
