From boiling streams and transparent lagoons to pink river dolphins and riotous river carnivals, the Amazon's great size...

The world's longest river, the Nile, is a lifeline for wildlife and fascinating cultures - both ancient and new.

From the frozen fringes of the north to the hot and steamy south, the Mississippi's fingers stretch into nearly half of...

Hippos, elephants, lions and buffalo are drawn to the Zambezi's wild waters, which grow from a tiny trickle in Zambia to...