Laughing is ubiquitous in human life, yet what causes it and how it sounds is highly variable. Considering this diversity, we sought to test whether there are fundamentally different kinds …
Nonverbal vocalisations are a fundamental part of human life. This review uses Tinbergen's ethological framework to examine the functions, ontogenetic trajectories, evolutionary …
In behavioural contexts like fighting, eating, and playing, acoustically distinctive vocalisations are produced across many mammalian species. Such expressions may be …