- Female dog bites are twice as numerous as male bites.
- The canine nose works one million times more efficiently than the human nose.
- The average dog has 42 permanent teeth.
- Most domestic dogs are capable of reaching speeds of 32 km's per hour when running flat out but the members of the greyhound family may reach speeds up to 70 km's per hour
- The Lundehund breed has 6 toes and can close its ears.
- Dalmation puppies are pure white at birth.
- Chihuahuas are born with a 'molera', or 'soft spot' like a human baby, which usually closes as they mature.
- Dogs do not have an appendix.
- The only sweat glands a dog has are between the paw pads.
- A dog's normal body temperature is 100.5 to 102.5 degrees Fahrenheit.
- If none are spayed or neutered, a female dog, her mate, and their offspring can produce 67,000 dogs in 6 years.
- The Beatles song Martha My Dear was written by Paul McCartney about his sheepdog Martha