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Dogs and wolves bark for some of the same reasons.

Closeup of wolf barking Definitely. Dogs and wolves share barks that indicate alarm and intruders. Yet dogs also seem to bark at times for no readily identifiable reason—researchers don't know whether these barks are for communication or are for some other unknown reason.

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Photo: Lynn and Donna Rogers, North American Bear Center, Ely MN.

What's in a Howl | Ed Bangs | Wolf-Dog Connection
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