Nowadays many people like to have dogs as their pets.
Dogs are friends of man notonly because they are lovely but also because they are faithful to their mastersoDogs can do a lot of work for man.They play with us.They hunt with us. They keepdoor for us.But 1ong ago，dogs all over the world were wildoDogs can date back to the Stone Age.All dogs have the same ancestor. It is bevelive that their ancestor was much like a wolf.0ther animals,such as the fox,came from this ancestor, too. Hundreds of thousands of years ago, man began to tame wild dogs .After the dogs were tamed,they were trainedo The strong dogs became working animalsoThey were trained to pull heavy loadso They learned to keep an eye on the sheep and otheranimals.Working dogs had other jobs,too.Some dogs were not strong。But they couldhelp man hunt for game。0ther dogs were best as pets。Today; there are more than 100 kinds of dogs in the world.