Animal_behaviour

Previous work suggested that titi monkeys *Callicebus nigrifrons* combine two alarm calls, the A- and B-calls, to communicate about predator type and location. To explore how listeners process these sequences, we recorded alarm call sequences of six …

Many primates produce one type of alarm call to a broad range of events, usually terrestrial predators and non-predatory situations, which raises questions about whether primate alarm calls should be considered ‘functionally referential’. A recent …