The Amazon river in South America is the world's largest river system. Making its way more than 18,000 vertical feet from the mountains to the sea, this river cuts through some of the most diverse forest in the world. Seasonal rainfall in this region causes the river to swell, creating unique flooded forest habitat. During the dry season as the water levels drop, flood plain lakes become isolated from the main river. Animals living in the Amazon River have adaptations that enable them to survive the extremes of these seasonal habitats.
Added by Upcoming Robot on January 1, 2010