Documentary by Portuguese Silvino Santos, about the Amazon, its flora, fauna, its inhabitants and among other wonderful images from the beginning of the 20th century with alternating close-up shots of caimans, jaguars and tropical flora with footage of Indigenous rituals--including some of the earliest known moving images of the Indigenous Witoto people--and longer sequences showcasing the region’s extractive industries: rubber, the Brazil nut, timber, fishing, even the egret feathers that were a staple of women’s fashion at the time.