Honestly exaggerated: howler monkey roars are reliable signals of body size and behaviourally relevant to listeners
Jacob Charles Dunn, Eloise Pedersen, Holly Farmer, Phillipa Dobbs, W. Tecumseh Fitch, David Reby, Benjamin D. Charlton
This study shows howler monkey roars reliably signal body size, with listeners responding differently to simulated calls of varying sizes.
Animal Behaviour · Dec 19, 2025Peer-reviewedAnimal Behavior & Cognition