Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
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Dogs have been man's pet for over 14,000 years.
224
George was the world's largest dog who weighed 233 pounds, stood at 43 inches tall from paw to shoulder, and ate 180 pounds of food a month.
7
A group of pugs is called a grumble.
10
Dogs can make about 100 different facial expressions.
18