Videos
Introduction
191
Tropical and Subtropical Regions
192
Amazon River
224
Amazon - The Name
62
Darkness Everywhere
162
Flora and Fauna
189
What About Humans?
266
How Humans Shape the Amazon
178
People's Adaptation
306
Transformation of the Sahara Desert
112
Location of Cold Deserts
214
What Are Deserts?
339
Characteristics of the Sahara Desert
367
The Oasis
153
The Sahara of Old
288