Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Baks the blind boxer has a seeing eye goose named Buttons; a four-year-old goose who leads the pup around everywhere either by hanging onto him with her neck, or by honking to tell him which way to go.
16
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
Dogs have been man's pet for over 14,000 years.
224
Dogs can make about 100 different facial expressions.
18
Dogs have four toes on their hind feet, and five on their front feet.
179