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 ...

Hear the booming cries that gave the howler its name. Learn just what these vocal monkeys may be trying to say.

We spent 72 hours deep in the Amazon rainforest, sleeping above waters filled with caimans and piranhas. Along the way we encountered rare Bald-headed White Uakari monkeys, heard the eerie calls of ...

In Alta Floresta, a small Amazon town in northern Mato Grosso, eight rope bridges installed in 2024 now span the road leading ...

Part I. Introduction. 1. Why is it important to continue studying the behavioral ecology and conservation management of howler monkeys? / Martín M. Kowalewski, Paul A. Garber, Liliana Cortés-Ortiz, ...