A dog is a mammal and like us a vertebrate, which means it has a spine or a backbone. Dogs are live born and their mothers take care of them for many months. Most dogs are domesticated, probably the first domesticated dogs lived with primitive man or cave men, they hunted with him and protected him and his family. This started a friendship between dog and man that will last forever.

Scientist believe that the ancestors of all dogs are wolves and over thousands of years they changed into the dogs we know. There are over 150 different types of purebred dogs, they range in size and shape. One of the tallest is the Great Dane standing 30-34 inches (2 1/2 - 3 feet) at the withers and weighing up to 130 lbs.. A Chihuahua is a tiny dog that weighs about 4 or 5 lbs. and stand at only about 4 or 5 inches at the withers.

Dogs help people in many ways, there are police dogs that help police track drugs & bad guys, there are seeing eye dogs that help lead the blind, there are hunting dogs that help there masters locate ducks, birds, and other animals. Alaskan malamutes are probably the hardest working dogs. They pull sleds full of freight for hundreds of miles in the snow for days and weeks at a time. Only pure bred dogs can be show dogs but all dogs can be great pets.

I love dogs! Some day soon my Mom is going let me get a dog. My favorite dog is the Whippet. It is the fastest dog in the world for his weight. A 25 pound whippet can run up to 35 miles per hour. In the olden days, in England, it was the poor man's race dog!

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