'Sit', 'down' and 'stay' are commands that man's best friend has been mastering for generations.But with the dawn of social media, a new trick of 'do that again' may be handy if owners are not ready with the camera at the moment of an adorable head tilt. Scientists have found that dogs are actually capable of this, and have been proven to be able to recall recent actions after a verbal prompt of 'again'.
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