Researchers at Budapest's Eotvos Lorand University where Lehoczki
works examined whether certain dog breeds are more prone to howling
and if this had anything to do with their genetic closeness to
wolves.
Lehoczki and her team examined how a dog's breed, age and sex
impacted its reaction to howling, by testing 68 purebred family dogs
by playing three-minute recordings of wolf howls and observing their
reactions.
The dogs in the experiment belonged to 28 different breeds ranging
from ancient breeds such Shiba inu, Siberian husky, Alaskan
malamute, and Pekingese, to bull terriers and boxers.
"The main finding was that ... those breeds which are genetically
closer to wolves are more prone to respond with howling, and they
also show more stress signals than dogs which are less related to
wolves," Lehoczki said, noting this was true only for dogs older
than five years.
Among younger dogs there was no difference between the breeds, so
researchers will examine this aspect further.
Older dogs of more ancient breeds responded with longer howls and
showed more stress-related behaviours too, while more modern breeds
seemed to react with barking.
The research also concluded that breeds which tend to howl more also
show more stress-related behaviour such as yawning, shaking their
body, licking their mouth or scratching the body.
The study is the first specifically investigating howling in
domestic dogs. "Domestication and selective breeding by humans
fundamentally changed dogs' vocal repertoire and both the perception
and production of howling in dogs," it concluded.
(Reporting by Krisztina Fenyo; Editing by David Holmes)
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