The Amazon Rainforest: The Amazon rainforest (located in the northern portion of South American) can be divided into four main layers: forest floor (lowest layer), understory layer, canopy layer, and emergent layer (highest layer). The emergent layer consists mostly of the tops of trees, and...
represented by different layers. These layers include the ground layer, the shrub and sapling layer, the closed canopy and the emergent layer at the highest point in the rainforest. The emergent layer is home to unique plants
The greatest diversity of Tupian languages is found in the southwestern Amazon. Consequently, most linguists point to this region (around the modern Brazilian state of Rondônia) as the center of origin of this linguistic stock, which had started to expand around 4,000–5,000 years ago (Migl...