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I found this in ScienceDaily from http://www.sciencedaily.com­/releases/2013/03/130327102652.htm From sniffing out bombs and weapons to uncovering criminal evidence, dogs can help save lives and keep the peace. Now, researchers have uncovered how to improve dogs’ smelling skills through diet, by cutting protein and adding fats. Such a diet, say the researchers, appears to help dogs return to

Dogs pick out faces of other dogs, irrespective of breeds, among human and other domestic and wild animal faces and can group them into a category of their own. They do that using visual cues alone, according to new research by Dr. Dominique Autier-Dérian from the LEEC and National Veterinary School in Lyon in France