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Human Noise Disrupts Siamang Behavior in Sumatran Forests, Study Reveals
A study in North Sumatra has found that human-generated noise, such as from vehicles and construction equipment, disrupts the movement, foraging, and mating behaviors of siamangs (Symphalangus syndactylus). Comparative experiments with natural sounds showed siamangs reacted most strongly to human noise, tending to move further away to avoid it.
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