Each year, the greatest river on Earth drowns beneath a vast steely mirror. Ribbons of jungle are all that remain to hint at another world beneath the surface. But as the floods of the wet season abate, waters start to fall. And as the Amazon begins to drain, the tops of the trees stretch into blue skies and feel fresh air for the first time in many weeks. In the annual battle for dominance between water and land, the forest now gains the upper hand. Whether high in the canopy, or on the forest floor far beneath, the withdrawal of the waters alters the face of the wilderness.