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C.Kolopp/WCS
When faced with a predator, female putty-nosed monkeys will call males to help protect them from the threat.
Putty-nosed monkeys (
Cercopithecus
nictitans) live in the forests of West Africa in groups of one male with multiple females and their offspring. The male will tend to roam further from the group and leave females to forage for themselves, but the females and lone male will alert each other when predators are nearby.
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Communication in this species differs based on sex. Females produce a single “chirp” to alert others when any form of predator is nearby, while the lone males will use different calls based on the type of predator spotted: “pyow” calls for those on the ground, like leopards, and “hack” calls for predatory eagles.