Human settlement become sparse towards west in Amazon basin
Answers
Explanation:
From rubber to palm trees, the forests of the Amazon basin have shaped human history. Long before timber, medicine, and exotic birds brought Europeans to the Amazon, indigenous peoples lived on the forests for millennia.
Over the past several decades, evidence has indicated that indigenous populations in the Amazon basin may have been very large, in the millions. Pottery fragments, stone points, and fertilizer remains have indicated multiple areas to be approximately 10,000-11,000 years old, comparable in age to many North America sites. Most research agrees that indigenous populations concentrated along rivers and farmed “terra preta” soil, maintained with fire and fertilizer. At the mouth of the Amazon River in Brazil, Anna Roosevelt was one of the first to discover ancient Amazon inhabitation. Elsewhere, remains have been found along the Xingu River, the Andes, and in the Bolivian Beni region. Debate continues on the exact numbers of population, as some contend that intensive land use was restricted and that interior forest areas were lightly impacted. Read more at Nature News (link is external).