Dogs, is a mammals which evolve from a wolf. From DNA test it happened 15.000 years ago. Now, the dog have so many variants from the tallest dogs (for ex: Great Dane) until the smallest (for ex: Chihuahua). You can also look for their differences from their fur, it's color.
Okay, let's check the history of dogs! The oldest fossil of dogs was found in Russia and German. There are some opinions about the dogs' history too. First, it came from Vila (1997). He said "Dogs is a branching of wolfs". Second, Savolainen (2002) who said that dogs have their own gen.
Biologists
have debated over the history and evolution of the domestic dog for
hundreds of years. Most Scientists now agree that dogs are directly
descended from Canis Lupus - the Grey Wolf. This is the Dogs' history....
The Evolution Dogs from Wolves - How could Wolves be tamed and Why? We will never now exactly why or how wolves were tamed by man, but let's we go back to 15000 years ago. The wolf and man had several important things in common, we were hunters. The most likely scenario is that a human hunting party came across a very young Wolf Cub and decided to take it with them. The Wolf would have been very puppy like at an early age, they were tame, and not as dangerous as a wild Wolf. A semi-tamed Wolf would probably have had considerable value to a hunter gatherer group, lending its superior hunting senses to the group. This would have helped not just in hunting but defensively as a warning system as well, some of them also act like a dog. The evolution of the wolf to the domestic dog began.
The Evolution of the Domestic Dog - Selective Breeding Process
Selective breeding would have been automatic. Keeping a wolf that became aggressive to the humans would have been both pointless and dangerous - such a wolf would have been killed. Only the remaining Wolves, with desirable traits, would have been selected to breed. Eventually the traits of each group of tame Wolves would reflect the needs of the group of humans it lived with: it's size, color, senses and even the length of its coat or swimming ability which they have. Eventually as the number of humans increased some degree of trade would have occurred between groups, puppies being swapped so the evolution and history of various dog breeds are explained.
Selective breeding would have been automatic. Keeping a wolf that became aggressive to the humans would have been both pointless and dangerous - such a wolf would have been killed. Only the remaining Wolves, with desirable traits, would have been selected to breed. Eventually the traits of each group of tame Wolves would reflect the needs of the group of humans it lived with: it's size, color, senses and even the length of its coat or swimming ability which they have. Eventually as the number of humans increased some degree of trade would have occurred between groups, puppies being swapped so the evolution and history of various dog breeds are explained.
The Evolution of Dogs from Wolves - Descendent of the Domestic Dog
Dr. Robert K. Wayne's explain that the modern dog, although very similar genetically to the Grey Wolf,
has many separately distinct origins in both time and locations. The
Grey Wolf and our modern "Human's Best Friend" are in fact so closely
related to Grey Wolves.
The Evolution & History of Dogs - The Sight Hounds
Sight hounds, also known as Gaze hounds as their gaze focuses on the horizon seeking
game, and they are have a special ability in hunting.
Sight hounds have distinctive characteristics, features and traits which
are perfect for their purpose. Sight hounds have extremely good vision.
They also have a long jaw and a long neck which really useful for them. Their lean muscular body, deep chest and long
powerful legs essential assets when following any fast preys.
Dogs History - The Scent Hounds
Scent
Hounds special in following the scent or the smell. It
was not necessary for Scent Hounds to be as fast and agile as
Sight hounds - they do not need to keep their quarry in sight. They can follow a scent for long
distances and even across running water. Scent Hounds have distinctive
characteristics, features and traits which are perfect for their
purpose. They have large noses which have deep, open nostrils and their
lips are loose and moist, designed to pick up scent particles and follow
the trail of an animal. Their ears are long which concentrates the
scent on the nose. Their bodies are designed for endurance, an essential
asset when following any scent trail. Because of that reason, they are very useful in military.
Dogs Evolution and History - Sporting Dog Breeds - Retrievers, Pointers and Setters Sporting
Dogs hunt by air scent, as opposed to ground scent. The Retriever,
Pointer and Setter dogs were bred selectively which resulted in them fulfilling the needs of man. Retriever dogs was found and they were really useful for the hunter. Some Retrievers are especially equipped, for instance
with a water-repellent coat and webbed feet, for retrieving downed
waterfowl. Pointer dogs stand in front of their preys, with their nose
and body rigidly still , they will show the hunter to its
location. Setter dogs were originally trained to set a trap, in
front of game preventing the escape of the preys. The hunter would make
the capture with a net. Man's own evolution and development in
technology moved the traditional hunting methods away from primitive
tools and nets - the Sporting Dogs were then called the Gundogs.
Dogs History and Evolution - The Terrier Dog Breeds
Dogs in the Terrier group were developed to hunt and kill vermin. The vermin included control rats, mice and other predatory animals such as foxes that might disturbed a farmer's produce and livestock. The very nature of these tasks required an energetic, tenacious, brave and determined dog.
The History of Dogs - The Non-Sporting Breeds
The characteristics and features of Non-Sporting Dogs cannot be generalized. Each breed would have originally have been introduced and strengthened by breeding with animals who already demonstrated the desired traits. They only use as a pet which can make their owner satisfied, for example, they can attend some dogs' shows, as a circus player, etc.
The History & Evolution of Dogs - Dog Shows
Man's passion and pride in his dog led to the desire to show his dog and compare it to other breeds. The organized dog shows were therefore born in the middle of the 19th Century. The dogs were unidentified except for their kennel names! This led to real confusion - there were quantities of dogs with the same names - Rover, Spot etc which were insufficiently described according to their breed or type. Organization was required - descriptions and breed standards were needed - the Kennel Clubs were born!
Dogs Evolution and History - Sporting Dog Breeds - Retrievers, Pointers and Setters Sporting
Dogs hunt by air scent, as opposed to ground scent. The Retriever,
Pointer and Setter dogs were bred selectively which resulted in them fulfilling the needs of man. Retriever dogs was found and they were really useful for the hunter. Some Retrievers are especially equipped, for instance
with a water-repellent coat and webbed feet, for retrieving downed
waterfowl. Pointer dogs stand in front of their preys, with their nose
and body rigidly still , they will show the hunter to its
location. Setter dogs were originally trained to set a trap, in
front of game preventing the escape of the preys. The hunter would make
the capture with a net. Man's own evolution and development in
technology moved the traditional hunting methods away from primitive
tools and nets - the Sporting Dogs were then called the Gundogs. Dogs History and Evolution - The Terrier Dog BreedsDogs in the Terrier group were developed to hunt and kill vermin. The vermin included control rats, mice and other predatory animals such as foxes that might disturbed a farmer's produce and livestock. The very nature of these tasks required an energetic, tenacious, brave and determined dog.
The History of Dogs - The Non-Sporting Breeds
The characteristics and features of Non-Sporting Dogs cannot be generalized. Each breed would have originally have been introduced and strengthened by breeding with animals who already demonstrated the desired traits. They only use as a pet which can make their owner satisfied, for example, they can attend some dogs' shows, as a circus player, etc.
Man's passion and pride in his dog led to the desire to show his dog and compare it to other breeds. The organized dog shows were therefore born in the middle of the 19th Century. The dogs were unidentified except for their kennel names! This led to real confusion - there were quantities of dogs with the same names - Rover, Spot etc which were insufficiently described according to their breed or type. Organization was required - descriptions and breed standards were needed - the Kennel Clubs were born!
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