Louder or longer? Optimizing information transmission in animals and the evolution of language

A new study published in Evolution Letters suggests vocal repertoire efficiency in rock hyraxes is driven by call amplitude rather than duration, challenging predictions of the Law of Brevity. Authors Dr Vlad Demartsev and Dr. Amyiaal Ilany tell us more. Social living in nature is tightly bound with the ability to communicate with others. Maintaining social ties and …