Through thousands
of years of selective breeding, the crop has evolved to be more resilient to harsh environmental conditions than other cereals, such as maize and wheat.
Part of what makes dogs so wonderful is that through thousands
of years of selective breeding, human have made a dog for every lifestyle and personality type.
After all, this basic notion is the reason for thousands
of years of selective breeding in the dog world — it's why we've been able to develop specific lines of dogs who are consistently driven to retrieve things, herd sheep, guard our homes, or track rabbits without any formal training at all.
Domesticated canines are thousands
of years of selective breeding from their wild counterparts.
Thousands
of years of selective breeding have turned man's best friend into the ideal lab rat to study the genetic underpinnings of personality
Experts think that dogs» tendency to copy us came about through thousands
of years of selective breeding and training.
In the meantime, after hundreds
of years of selective breeding, aggression is now in their DNA.
It took hundreds
of years of selective breeding to create dogs aggressive enough that they were fit for bull - and bear - baiting.
Also known as Australian Heeler, Hall's Heeler, Blue Heeler, Red Heeler and Queensland Heeler, the Australian Cattle Dog originated in Australia in the 19th century and is the product
of years of selective breeding to obtain the ideal herding dog.
«It is now generally agreed that the ancestor of the modern dog is the wolf... [the] process of domestication where our ancestors removed the «wildness» from the wolf, involved thousands
of years of selective breeding... In this process, our ancestors produced hundreds of «different looking wolves»... our ancestors made only two basic changes to the wolf.
Thousands
of years of selective breeding have turned man's best friend into the ideal lab rat to study the genetic underpinnings of personality
Features of the sheep's coat and the rise of textile crafts in teracted to motivate the thousands
of years of selective breeding that led to modern fleece types
Nearly all modern fruits, vegetables, meats and animal products are derived from thousands
of years of selective breeding to increase size and fat / sugar content.
Not exact matches
The species
of wheat that we in the West use for bread only developed in the last few thousand
years as a result
of two instances
of sympatric speciation (different to
selective breeding, but an agent
of evolution none the less).
After many
years of such
selective breeding, the resultant dogs would differ so much in body shape, leg length and, perhaps, lung capacity to their ancestor as to be considered a separate
breed.
If, for example, a dog breeder only ever allows the fastest male dogs to
breed with the fastest female dogs, after many
years of such
selective breeding the resultant dogs will differ so much in body shape, leg length and, perhaps, lung capacity from their ancestor as to be considered a separate
breed.
If, for example, a hunter - gatherer only ever allows the fastest male dogs to
breed with the fastest female dogs, after many
years of such
selective breeding the resultant dogs would differ so much in body shape, leg length and, perhaps, lung capacity from their ancestor as to be considered a separate
breed.
The species
of wheat that we in the West use for bread only developed in the last few thousand
years as a result
of two episodes
of sympatric speciation (different to
selective breeding, but an agent
of evolution none the less) and the various Shiraz, Char.donnay and Pinot Noir gra.pes we enjoy today, in the form
of wine, were all developed and perfected in the last 100
years or so.
(Ill - fitting because humans have been indirectly, and much less precisely, modifying plant and animal genomes for thousands
of years via
selective breeding, and evolution has been doing it for as long as there has been life on Earth.)
Genetic modification and
selective breeding to increase crop yields over the
years has dramatically changed the genetics and chemical composition
of wheat.
After ten
years of selective breeding however, the incidence
of moderate and severe cases
of hip dysplasia didn't change.
All things considered, the
breed definitely blends speed, strength, and trainability due to its large, agile frame and over a hundred
years of selective breeding.
Only in the last one hundred
years has
selective breeding caught on — synonymous with the rise
of the cat as a companion.
And even more dramatic changes have been wrought on dogs in the last about 3000
years as a consequence
of intensive
selective breeding.
After
years of selective breeding and careful offspring management, the result was impeccable — a functional, all - purpose hunting dog.
A lot
of purebred dogs have special diet requirements:
years of selective inbreeding, necessary to achieve the desired «look»
of some
breeds, have resulted in terrifically unhealthy dogs that are prone to a variety
of debilitating and painful diseases.
Bernese Mountain Dogs have developed their wonderful qualities due to
years of careful,
selective breeding by dedicated, knowledgeable breeders.
Years of selective breeding, has created the American Bully.
Dogs and canines were domesticated between 10,000 and 35,000
years ago through
selective breeding, suggesting the earliest dogs presumably arose once we, humans, were still searching and gathering, way before the appearance
of agriculture.
Over many generations
of selective breeding, we've worked to maximize the qualities required for a working guide dog and minimize health problems that could disrupt or shorten a guide dog's working
years.
Over the
years,
selective breeding and the weeding out
of specimens that failed to conform to the required standard has resulted in a marked improvement in the
breed.
Years of selective breeding and the careful recording
of many generations
of cats guarantee that each litter
of kittens will have specific qualities.
People in the late 19th and early 20th centuries didn't have the scientific knowledge
of current canine genetics, but they did understand from
years of raising farm animals how
selective breeding worked.
Selective breeding with the smallest
of these dogs gradually changed the
breed over the
years.
If I remember properly the (
selective breeding) was done with the project in about 10
years as»
selective breeding» changes have to thru generations
of the animal to make a change into a standard.
They are gorgeous, as
selective breeding has, in just 20
years, produced a number
of color and pattern variations.
Most
of these
breeds exploded onto the scene over the past 150
years, spurred by the Victorian - era passion for the «dog fancy» — the
selective breeding of dogs to enhance particular characteristics.
Years of selective breeding has had the side - effect that some
breeds are genetically predisposed to conditions which shorten life - the reverse
of hybrid vigour.