Dogs have been man's pet for over 13,000 years. Dogs descended from the wolf family that roamed Europe, Asia, and North America. Scientists know that man and dogs have had a relationship for many years through their study of cave drawings, early pottery, and Asian ivory carvings.

Classifying dogs into categories began with the Romans. They had the following categories:

-house dogs,
-shepherd dogs,
-sporting dogs,
-war dogs,
-dogs that ran by scent, and
-dogs that ran by sight.
On this Great Heart Encyclopedia, you will find all abou Dogs, anatomy food etc…:
Among the topics in this encyclopedia includes:
(Full text, pictures and graphics)

1. Dog
Dog Canidae
Etymology and related terminology
Wild Dog


2. History and evolution
Origin of the domestic dog
Roles with humans
Food dog


3. Biology
Dog anatomy
Senses
Coat dog


4. Reproduction
Canine reproduction
Dog intelligence
Dog behavior


5. List of most popular dog breeds
Dog breeds
Most popular breeds
Most popular breeds with children

This Beautiful Encyclopedia, is part of several volumes and issues
which can be found on our website:

www.encyclopediasuite.com
And others in many different languages as well.

Your visit to our website is valuable and your emails or comments
are always welcome.

Encyclopedia Suite:
GREEN ENVIRONMENT ENCYCLOPEDIAS suite .
www.elsalvadorguia.com