Service dogs are trained to know when they are on duty. When their harness is on, they know they are at work. When you take it off they instantly become playful and energetic.
11
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
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The Basenji dog is the only dog that is not able to bark.
4
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
Two dogs were among the Titanic survivors.
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Dogs can make about 100 different facial expressions.
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