Tool use in apes is not unheard of, but this gibbon has taken it to a whole new level by enhancing her singing with the sound of an enclosure door slamming:
Each time her song reached its natural climax, the gibbon slammed shut the door of her enclosure, using the loud noise it made to accentuate her call.
The gibbon used the door to create a single beat rather than a rhythm.
But her behaviour is yet another example of how smaller ape species are also capable of novel tool use, says the primatologist who witnessed it.
Link – via monkeydaynews
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