Synopsis

Here’s a revised version of the text: The Amazon, the largest river system on Earth, begins as a modest stream high in the Andes Mountains before flowing over 6,000 miles to reach the Atlantic Ocean. Containing one-fifth of all the planet's freshwater rivers, it regularly floods an area exceeding the size of England and sustains an extraordinary abundance of wildlife. Within the Amazon Basin thrive thousands of fish species, ranging from those capable of breathing air to the infamous piranha.