Barking in Other Animals
Many animals communicate via various vocalizations. While there is not a precise, consistent and functional acoustic definition for barking, researchers may classify barks according to several criteria. University of Massachusetts Amherst researchers identified volume, pitch, tonality, noise, abrupt onset and pulse duration are amongst the criteria that can be used to define a bark.
Besides dogs and wolves, other canines like coyotes and jackals can bark. Their barks are quite similar to those of wolves and dogs. The bark of a dingo is short and monosyllabic.
The warning bark of a fox sounds much like a dog's, but generally the vocalisation of foxes is higher and more drawn out than barks of other canids.
There are also non-canine species with vocalizations that could be described as barking. Because the Muntjac's alarm call resembles a dog's bark, they are sometimes known as Barking Deer. Eared seals are also known to bark. Prairie dogs employ a complex form of communication that involves barks and rhythmic chirps. A wide variety of bird species produce vocalizations that include the canonical features of barking, especially when avoiding predators. Some primate species, notably gorillas, can and do vocalize in short barks.
Read more about this topic: Bark (sound)
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