The Basenji dog is the only dog that is not able to bark.
4
Dogs have four toes on their hind feet, and five on their front feet.
179
One in three dog owners say they have talked to their pets on the phone.
427
The most expensive dog in the world is the Tibetan Mastiff; worth $1.5 million.
2
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
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
Cats and dogs can hear ultrasound.
350