Reader’s Digest: Meet the Dogs That Can Sniff Out Cancer

The canine nose is a marvel of nature. Science believes that a computerized model will save millions of lives.

Osa, an athletic 62-pound German shepherd with a long fluffy tail and a fondness for red bandannas, seems an unlikely superhero.

She chews on the couch when she’s bored and isn’t above making a scene to get attention. On a recent day when her foster mother and trainer Anne­marie DeAngelo stepped outside their New Jersey home while chatting with a visitor, Osa bounded up and barked for attention; when that failed, she leaped onto the patio table, stuck her snout in DeAngelo’s face, and began whining.

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