Scientists have detected microplastics in the digestive systems of red howler monkeys living in protected areas in the Brazilian Amazon, marking the first evidence of plastic ingestion by a ...

Far up a giant Amazon jungle tree, a large howler monkey walked among the branches. As it stepped from branch to branch, its long tail would wrap around a convenient trunk providing extra stability.

In a recent study, scientists report that howler monkeys in Costa Rica make longer calls in forest interiors and near naturally occurring forest edges, such as those along rivers, than near ...

The Paiter-Suruí people have a culture deeply rooted in their land: the Sete de Setembro Indigenous Land (TISS), on the border of Rondônia and Mato Grosso in the southwestern Brazilian Amazon. Known ...