In the photo taken with his phone, Takakudjyti Kayapó holds a round-bellied silver matrinxã fish in front of his chest, the fingers of his left hand wrapped around the base of its tail and the fingers of his right securing its head.

He's sitting in the stern of a simple white aluminum motorboat, floating along the calm waters of the Curuaés, a river known to his people as the Pixaxá. It runs along the western edge of two Mebêngôkre Kayapó territories, located in the Brazilian Amazon state of Pará and providing a handful of villages on its edge with fish to eat, water to drink and a place to wash and bathe.