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بندر اپنے ہاتھوں کے ذریعے اپنی آواز کیسے بدلتے ہیں - BBC Urdu


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Source channel: BBC News اردو

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Description

Orangutans use their hands to alter their voices and make themselves sound bigger, say scientists.

The animals cup their mouths when they produce kiss squeaks – alarm calls that often signify a predator is nearby.
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