The Amazon and its tributaries hold one-fifth of all river water on the planet.
The name Korubo means "dirty feet" and was given to the tribe by a rival group.
The Amazon basin covers an area almost the size of Australia, and is the world’s largest watershed.
The Juruá River is one of the longest tributaries of the Amazon, stretching 2,500km.
The indigenous reserve of Vale do Javari is home to an estimated 3,000 native people.
98% of the Brazilian state of Amazonas is covered in rainforest.