So for example the judge might ask you to trot in a triangle. In the summer the fur grows slowly. In the fall the fur grows faster. In the spring the fur sheds. Since dogs sense of smell is so strong, dogs are used as police dogs.
Police dogs smell out criminals, drugs, and hidden explosives.
A German Shepard has 220 million odor cells in its nose. A human only has about 5 million odor cells. A dogs whiskers are used to feel when it is too dark to see. Dogs can hear high pitches that humans can't. Puppies start out with 28 teeth.