Dogs can make about 100 different facial expressions.
18
Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
A dog's naked behind leaves absolutely no bacteria when pressed against carpet.
250
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
Dogs have four toes on their hind feet, and five on their front feet.
179
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Two dogs were among the Titanic survivors.
262