Sofía Heinonen in the dinghy on the Río Negro after a tropical shower, with a rainbow over the water, Alto Paraguay, Paraguay, 31 August 2026.

Photographed during the Paraguay River Expedition, a Jaguar Rivers Initiative survey running downstream from Corumbá, Brazil, into Paraguay and Argentina. The initiative is an alliance of Rewilding Argentina, Fundación Moisés Bertoni (Paraguay), Nativa (Bolivia) and Onçafari (Brazil). Photographed by Henry Maillet with support from the National Geographic Society.