Many animals, including chimpanzees and bonobos, have food related calls… But aside from anecdotal reports, there was no evidence of this behavior in gorillas, until now. A new paper in PLoS One documents that the wild western lowland gorillas in the Republic of the Congo sing and hum when eating, as a way to express contentment with their meal, as well as for the head of the family to communicate to others that it is chow time.
The first clip demonstrates a steady low-frequency tone that sounds a bit like a sigh of contentment. The second clip sounds like a series of short, differently pitched notes as if someone humming a random melody.
Filed under: Anthropology, Audio, Gorilla, Sociobiology Tagged: behavior, food, Gorilla, primate