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Study Reveals Proboscis Monkey Nose Boosts Communication

9/5/2025

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Summary

Story summary

The proboscis monkey, found in Borneo, features a prominent long nose, particularly in males.
Researchers from the University of Osaka analyzed CT scans of adult and juvenile monkeys to explore the nose's communicative function.
The large nose enhances vocal calls, reaching distances of up to 7 kilometers (4.3 miles).
Lower-frequency calls signal larger, sexually mature males, influencing female choice and male rivalry.
The study reveals the link between physical traits and social signaling in proboscis monkeys, published in the Journal of the Royal Society Interface.

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Story summary

The proboscis monkey, found in Borneo, features a prominent long nose, particularly in males.
Researchers from the University of Osaka analyzed CT scans of adult and juvenile monkeys to explore the nose's communicative function.
The large nose enhances vocal calls, reaching distances of up to 7 kilometers (4.3 miles).
Lower-frequency calls signal larger, sexually mature males, influencing female choice and male rivalry.
The study reveals the link between physical traits and social signaling in proboscis monkeys, published in the Journal of the Royal Society Interface.