latest news

How did dog breeds evolve? before | after dogs breeding

 How did dog breeds evolve? before and after dogs breeding

Dogs evolved from wolves, which are their ancestor species. The most common way that specific breeds of dogs have been created is through selective breeding, in which humans attempt to produce a certain set of desired characteristics in a particular breed. 

This has been done over many generations, meaning that the original dog breeds are quite different from what we see today. dogs Breeding, for more desirable traits such as size, coat color, intelligence, and temperament has allowed us to create hundreds of distinct types of dogs.


Selective breeding is the process of selectively mating certain types of animals together in the hopes of producing offspring with desired traits. This practice has been used for centuries, and it is how we have created many of the modern dog breeds that we see today. 

Through selective breeding, humans can create or enhance certain characteristics in a breed, such as size, coat color, intelligence, and even temperament. The practices of selective breeding and careful record keeping have allowed us to create over 340 distinct dog breeds, each with its own unique qualities.

How a century of breeding has changed the shape of dogs!

Over the last century, selective breeding has drastically changed the shape of many dog breeds. From the long, lanky Greyhound to the stout Bulldog, selective breeding has produced dogs with a wide variety of body shapes and sizes. 

It has also been used to create specific types of coats, from thick double coats to short, smooth coats. Selective breeding has improved coat colors, as well, by producing unique colors like blue and white or chocolate and tan. Finally, selective breeding over the years has resulted in a variety of phenotypes, such as flat faces, pointy ears, and curly tails.

Here are some of the main ways selective breeding has changed the shape of dogs over the last century

  • Size: Selective breeding has been used to create a wide range of sizes in dogs, from tiny toy breeds to massive mastiffs. 
  • Coat Type: Breeding has been used to create different coat types, including double coats, smooth coats, and wavy coats. 
  • Coat Color: Breeders have been able to produce a variety of stunning coat colors, from blue and white to chocolate and tan.
  • Phenotypes: Pointy ears, flat faces, curly tails, and other features have all been created through selective breeding.

Here are the main ways that selective breeding has been used to change the shape of dogs over the last century: 

  • Selective mating: Breeders use specific animals for mating to produce desired qualities in the offspring. 
  • Record keeping: Keeping records helps ensure that certain desired traits are passed down from one generation to the next. 
  •  Inbreeding: In some cases, breeders will use closely related dogs to produce puppies with specific characteristics. 
  •  Linebreeding: By selectively mating dogs from the same family line, breeders can enhance desired traits while minimizing undesirable ones.


how has the dog breed changed?

 The process of dog evolution can be broken down into five main stages. First, selective breeding was used to create the original varieties of dogs that existed thousands of years ago. These included the mastiffs, hounds, and spitz-type breeds. 

Over the next few thousand years, these breeds were selectively bred and crossed with one another, resulting in the development of modern breeds. New breeds were also created from crossbreeding existing breeds. Today, breeders continue to refine their existing breeds and create new ones through selective breeding and careful recordkeeping.

Here are the five main stages in the evolution of dog breeds: 

  1.  Early varieties: Dogs were selectively bred to create the original varieties of dogs that existed thousands of years ago. 
  2.  Crossbreeding: Existing breeds were interbred to create new varieties. 
  3. Refinement: Breeders started to refine existing breeds and create new ones through selective breeding. 
  4. Standardization: Standards were created to ensure that certain traits were consistent across each breed. 
  5. Modern Variations: Continued refinement of breeds has resulted in the hundreds of distinct dog breeds we see today.

dogs before and after selective breeding

 Before selective breeding, dogs were less uniform in both size and appearance. Today, many breeds of dog have distinct physical features and behaviors that have been refined through specific selection. For example, the modern-day Rottweiler is a product of centuries of selective breeding for the purpose of guarding and protecting livestock. After selective breeding, dogs have become more specialized for different activities like hunting, herding, or even just being companions and house pets.

Here are some more examples of dog breeds that are the result of selective breeding: German Shepherds, Labrador Retrievers, Golden Retrievers, Poodles, Chihuahuas, Bulldogs, Beagles, and Boxers.


 Here are some more details about the effects of selective breeding on dogs:  

  • - Increased size/stature
  • - Enhanced physical characteristics (such as stronger bones, bigger heads, and longer necks) 
  • - Adjusted coat colors and patterns
  • - Altered behavior (including increased levels of aggression in certain breeds)
  • - Improved health (reduced chances of certain genetic diseases)
  • - Increased temperament (some breeds are bred to be more friendly and obedient than others)

dogs 100 years ago vs now

 100 years ago, dogs were mainly bred for work such as herding and hunting. They were valued for their strength, obedience, and ability to work. Over the past century, dogs have become much more of a companion animal. 

Today, people are breeding dogs for different characteristics, such as size and physical appearance, instead of just work-related traits. As a result, we now have a wide variety of breeds, each with their own unique characteristics.

 Here are some of the major changes in dogs over the past 100 years

  • More breeds - There are over 400 recognized dog breeds, compared to around 30 in 1900. 
  • Varied size - Dogs range widely in size, from the Chihuahua to the Great Dane. 
  • Health issues - Genetic testing and better medical care have improved the overall health of dogs. 
  • Working roles - Dogs are now used for search and rescue, bomb detection, service animals, and more. 
  • Companionship - Dogs are valued more for their companionship than for their physical abilities.

Here are some additional changes in dogs over the past 100 years:

  • Longevity - With improved nutrition and healthcare, dogs are living longer lives. 
  • Intelligence - Selective breeding has produced smarter dogs that can learn commands more quickly. 
  • Appearance - Dogs have become increasingly specialized for different physical appearances and functions. 
  • Veterinary care - Veterinarians have improved their methods of diagnosing and treating medical issues in dogs. 
  • Culture - Dogs have become an important part of popular culture with their own movies, TV shows, and books.

dogs then vs now

Dogs have changed significantly over the past 100 years. 100 years ago, dogs were mainly bred for work-related purposes such as herding and hunting. Today, dogs are bred more for companionship and physical appearance. Their roles have shifted from mainly working animals to beloved family members. 

Additionally, dogs have benefited from improved nutrition and healthcare, allowing them to live longer lives. Selective breeding has also produced smarter dogs that are easier to train. Finally, dogs have become a major part of popular culture, with their own movies, TV shows, and books.

Read more: what is Healthy human foods for Dogs?  

How has selective breeding changed dogs over time?

Selective breeding has been used to develop a wide range of different dog breeds with specific traits, such as size, coat type, and temperament. Over time, these changes have led to dogs becoming adapted to perform specific tasks, such as herding, hunting, and guarding, as well as being companions or show dogs. The changes in the physical traits of dogs have also allowed them to live in different climates and environments, which was not possible before selective breeding.

Selective breeding has changed dogs in the following ways

  1. Developing different breeds with specific traits, such as size, coat type, and temperament 
  2. Making dogs adapted to perform specific tasks, such as herding, hunting, and guarding 
  3. Making dogs suitable as companions or for show 
  4. Allowing dogs to live in different climates and environments 
  5. Increasing variation in physical traits, such as color and size.


What did original dogs look like?

The original domesticated dogs were smaller than most of the breeds we see today. They were often brown or grey with short fur and pointed ears, and they typically weighed between 20-25 pounds. Their short muzzles gave them a wolf-like appearance, and their tails were often curled. Additionally, they had sharp claws and teeth, and some had floppy ears.

Original dogs had strong, athletic builds with a lot of endurance. Their jaws were powerful and their legs were long and muscular; they were adept hunters and skilled at running fast. In addition, they had keen senses of hearing, sight, and smell. They were agile climbers and excellent swimmers, and some were even adapted to colder climates and could survive in icy waters.

How selective breeding changed dogs?

Selective breeding has been used to create different types and sizes of dogs, including

  • Toy/Small Dogs: These are the smallest breeds, weighing less than 10 pounds, and include breeds like Chihuahuas and Maltese.
  • Medium Dogs: These medium-sized dogs weigh between 10-25 pounds and include popular breeds like Beagles and French Bulldogs. 
  • Large Dogs: These dogs weigh between 25-60 pounds and include Labrador Retrievers, Bullmastiffs, and Rottweilers.
  • Extra-Large Dogs: These are the largest of the dog breeds, weighing more than 60 pounds, and include breeds like St. Bernards and Great Danes.

When did dogs start to be selectively bred?

Selective breeding of dogs is believed to have first taken place in the Middle Ages, although it is likely that the practice of selectively breeding specific types of dogs has been around for much longer than that. During the Middle Ages, monks and other members of the nobility began breeding different types of dogs for specific traits, such as size, coat type, and temperament, which ultimately resulted in the different breeds of dogs that are seen today.


Selective breeding was most widely used in the 19th century, during which time certain breeds began to be standardized and defined. It was also during this period that some of the more modern dog breeds, such as the Poodle and German Shepherd, were developed. Over time, selective breeding has allowed for a variety of different types and sizes of dogs to be created, allowing for dozens of different breeds to be developed.

what did dogs look like 1,000 years ago

Dogs 1,000 years ago were smaller than the breeds we see today, with short fur and pointed ears. They had a strong, athletic build with powerful jaws and long, muscular legs. Their fur was typically brown or grey, and their tails were often curled. Additionally, they had sharp claws and teeth, and some had floppy ears. They were adept hunters, with keen senses of hearing, sight, and smell, and were also agile climbers and excellent swimmers.

Dogs 1,000 years ago looked like the following

  • Muscular and athletic builds 
  • Short, dense fur 
  • Pointed ears 
  • Rounded muzzle 
  • Dark eyes 
  • Strong necks and loins 
  • Broad chests and strong backs 
  • Long, narrow tails 
  • Sharp claws and teeth.

do dogs live longer now than in the past

It depends on the breed of dog and the health care they receive. In general, advances in veterinary medicine have led to an overall increase in the average life expectancy of most dogs. Additionally, some breeds of dogs are known to have longer lifespans than others, such as the Chihuahua and Shih Tzu, which usually live up to 16 years on average.

Different breeds of dogs have different life expectancies. For example, small breeds like Chihuahuas, Shih Tzus, and Toy Poodles tend to live longer than larger breeds such as German Shepherds or Labrador Retrievers, typically living around 16 years on average. 

Besides breed, other factors that can affect a dog's life expectancy include nutrition, exercise, overall health, and environment. In order for a dog to live a long and healthy life, owners should be sure to provide them with a healthy diet, adequate exercise, good vet care, and a safe and loving home.

dog breeds 100 years ago and now

Dog breeds today have changed significantly from those found 100 years ago. Many of the smaller, more common breeds such as Chihuahuas, Shih Tzus, and Poodles. were developed in the last century as companion dogs, while larger breeds like German Shepherds and Labrador. Retrievers were bred for a variety of purposes such as hunting and guard dogs. Some breeds that existed 100 years ago, but are now rare include the St. Bernard, Irish Wolfhound, and Bull Terrier.

  1. Greyhounds and Dalmatians were bred for their speed and agility. 
  2. Collies and Shetland Sheepdogs were developed for herding and guarding livestock. 
  3. Pugs and French Bulldogs were bred as companion dogs. 
  4. Dachshunds were developed for hunting small animals in tight spaces. 
  5. Siberian Huskies and Alaskan Malamutes were bred to accompany Arctic explorers. 
  6. Great Danes and Mastiffs were originally bred for protection and guard duty.
  7. Beagles were bred to hunt hares, rabbits, and other small game. 
  8. Cocker Spaniels were bred to hunt woodcocks. 
  9. Bulldogs were originally bred for bull-baiting in England. 
  10. Boxers were bred to be guard dogs and Bullenbeissers. 
  11. Pomeranians were bred as companion dogs. 
  12. Rottweilers were originally bred to work as cattle 


Font Size
lines height