Began at 7:00 PM
Hippos spend most of their day in the water, to keep cool from the heat of the African sun. Hippos have glands underneath the skin that secrete a sweat like substance that acts as both a sun screen and an antibiotic. Courtesy of BBC.
Series: Nile: Rivers of Life
The Nile is the world's longest river. From elephants and leopards to extreme kayakers and ancient wonders, its great length provides a lifeline for Africa's wildest beasts and for some of the world's most incredible cultures.