It’s a long-held belief that loud mouths overcompensate for something, but in the case of howler monkeys, science has confirmed it’s a biological fact. A landmark study by Dr. Jacob Dunn at Cambridge ...

If you lose your sight, you make up for it with other senses. If one arm is amputated, you learn to do twice as many things ...

Howler monkeys are relatively small primates known for their incredibly loud, low-frequency roars that sound as if they come from a much larger creature. This is useful in the animal kingdom because ...

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, ...

Animal abduction: Biologists documented five male capuchin monkeys carrying at least eleven different infant howler monkeys -- a behavior never before seen in wild primates. Rise and spread: The ...

A howler monkey infant, only a few days old, clings to a subadult white-faced capuchin monkey as it uses tools. Brendan Barrett / Max Planck Institute of Animal Behavior In June 2022, while watching ...