A Picture of a Dog

Dog Facts

  • Name: Dog
  • Trinomial Name: Canis lupus familiaris
  • Lifespan: 10 to 13 years on average
  • Diet: Meat (carnivorous)
  • Range: Worldwide (domesticated)
  • Length: Varies by breed
  • Weight: Varies by breed

17 Dog Facts for Kids

  1. Dogs are members of the Canidae family and the Canis genus.
  2. Their scientific trinomial name is Canis lupus familiaris.
  3. As of 2019, the AKC (American Kennel Club) recognizes 202 standard dog breeds.
  4. Dogs were the first animal species to be domesticated by humans.
  5. The average length of a dog varies by greatly breed, they can be as short as 6 inches and as big as 8 feet.
  6. The average weight of a dog varies greatly by breed, they can weigh as little as 4 ounces and as big as 300+ pounds.
  7. It’s estimated there are over 900 million domesticated dogs worldwide.
  8. It’s estimated there are over 75 million domesticated dogs in the United States of America.
  9. Dogs are the most popular domestic pets worldwide.
  10. When a puppy is born it’s blind, deaf and has no teeth.
  11. A health, genetically normal adult dog will have 42 teeth.
  12. Dogs have an amazing sense of smell. They have around 300 million receptors in the nose. To put that into context, a human only has around 5 million receptors.
  13. Dogs do see in color, contrary to popular beliefs. However, they don’t see colors as vivid as humans can.
  14. Pet owners give their dogs all kinds of unique names. However, the most popular names are Max, Molly, Sam, Zach and Maggie.
  15. Greyhounds are the fastest dogs on the planet, reaching speeds of up to 45 miles per hour.
  16. Dogs don’t curl up into a ball when they sleep to keep warm. Long ago, before dogs were domesticated and they would curl up into a ball when they slept to protect their organs from predators.
  17. Dalmatians are born with no spots and are completely white. Their spots develop as they get older.

Additional Resources on Dogs