Aleimar V. Silva poling the dinghy away from the Marajó XVIII, moored against the bank on the Paraguay River, Mato Grosso do Sul, Brazil.

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.