More about What The Dog Knows (Quickfacts)

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The list of smells working dogs are trained to detect lengthens daily: abalone and accelerants; termites, truffles, and TNT; crack cocaine and cancer; mildew and moths; spotted owls and spiny lobsters; peanuts in food and diabetes in blood; and much more.

A good cadaver dog can detect the seemingly undetectable: the faint scent of someone who has died a few hours before and laid only briefly on a carpet; dry bones that are thousands of years old;