Sago palms in lowland New Guinea tower like pillars in a natural temple. Huge fronds, like cathedral arches, overshadow Sawi people as they pry open a palm after felling it with stone axes. “Harvesting Sago” shows them separating sago from palm pulp by sluicing water through the pulp using the concave side of a palm frond as a ready-made ‘trough.’ Nearby, two boys hunt frogs. A girl finds shrimp in a ‘basket trap.’ A hunter brings home a golden possum as prey. A dog protects new sago loaves from village pigs. When distant tides reverse the river’s flow, the gap in a nearby ‘dam’ made of palm fronds welcomes fish upstream. When the tide ebbs, closing the gap with extra fronds leaves upstream fish floundering in shallow pools.