Mans best friend. Dogs. They have been with use for centuries. They have been friends, loyal, and great hunting companions, they have even protected are land and houses. Dogs are a domesticated species of the wolf. In the world today there is an estimation of 400 million dogs (that is a lot of dogs). But if I want to tell you about dogs, I am going to have to start at the very beginning. The origin.From DNA based samples date modern dog ancestors back 100,000 years. Evidence suggests that dogs were first domesticated in East Asia, possibly China. And the people that entered North America took the dogs from Asia with them. And as people began to spread across the planet and variety of dogs also spread. And during the change in time, like the agriculture revolution and urban revolution demanded specialization in breeds. And these circumstances led to the opportunity to selective breeding. This way it could create specialized working dogs and better pets for the different types of family.
But when were dogs domesticated? Well archaeological and genetic evidence say that the time of the domestication for dogs was in the late Upper Paleolithic close to the Pleistocene/Holocene boundary, between 17,000 and 14,000 years ago. Domesticated
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dogs may have interbred with local populations of wild wolves, but this is uncertain.Now with the wide range of the dog breeds they have devopled some way over time. With the beginnings of agriculture around 12,000 years ago, humans began making use of dogs in various ways, this resulting in physical differences between dogs and their wolf ancestors. Also dog breeds have changed due to envoriment in where the dog lives (example your house). Like the Old English Sheep Dog devloped to hearding sheep, will the Blood Hound delvopled a sense of smell for tracking. Besides the basic breeds, like German Shepreds, people have been cross breeding dogs when they take two different dog species and breed them, these are called hybrid dogs. Have you ever heard of a Afador? This dog is a mix between Afghan Hound and Labrador Retriever. Or have you ever heard of a Plica? That dog was a mix between a Basset Hound and a Ori Pei Hybrid. These are some examples of hybrid dogs.
But with every dog breed there is dog breed popularity. For example in United States in 2005 t
he most-registered breed in New York City was the Poodle while the Yorkshire Terrier was the second-most-registered breed in Houston, Texas. So popularity varies in the different states. But in shelters acroos the U.S report that the American Pit Bull Terrier is the most avaiable dog for adoption. In the United Kingdom from 1999 to 2005 the Labrador Retriever was the most registered dog.So as we now dogs have been with us for a very very long time. They have been loyal compainions and we all have our different taste in dogs. Some of us perfer small dogs, while some of us prefer to large. Some pefer long haired dogs, or short haired dogs. They are definitly mans and womens best friends.
My Dogs
Above: Daisy (Old English SheepDog) Below: Honey (BloodHound)
Pics:
http://www.firstpeople.us/pictures/wolves/1024x768/f-wolves99-11-s-1024x768.html
http://en.wikipedia.org/wiki/Image:Buldog_angielski_000pl.jpg
http://en.wikipedia.org/wiki/Dogs#Smell
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