Sentences with phrase «of years of domestication»

Some researchers claim that dogs are extremely smart because their brains are physically quite large and they can perform tasks that require them to follow specific instructions while others claim that most of this behavior is based on thousands of years of domestication.

Many pet lovers and owners are often fascinated with why cats, dogs and other species of pets act the way they do, from the study of ethology and evolution, to thousands of years of domestication and artificial selection.

Though largely working animals through most of their years of domestication, the horse also fills history and families with stories of heroism, stoicism, determination and companionship — from Sea Biscuit to therapy horses, working ponies to steadfast partners in the Old West — our equine companions deserve the healthiest lives we can give them.

The dog that has first access to food, for example, has nutritional advantage over others and even though thousands of years of domestication have changed the dog in many ways, instinct can remain deeply rooted.

The argument that dogs are designed by their evolutionary history to eat raw meat based diets is riddled with errors and fallacies and ignores the impact of tens of thousands of years of domestication and cohabitation with humans on the physiology of our canine friends.

These natural instincts to learn behaviour have further been developed by thousands of years of domestication which ultimately helps us control them.

[Attila Andics et al., Voice - Sensitive Regions in the Dog and Human Brain Are Revealed by Comparative fMRI] Seems that thousands of years of domestication have made our furry friends sensitive to the same vocal cues we are.

Not exact matches

Researcher Pamela Burger, who heads one of the few research groups to study camel genetics, was interested in learning about the domestication of camels which took place around 3,000 to 6,000 years ago.

Early Domestication of Chile Peppers Confirmed By Dave DeWitt Scientists, including researcher Linda Perry, writing in the journal Science (February 16, 2007), have proven that chile peppers were domesticated in South America at least by 6,000 years ago.

In all cases of domestication, the cultivated forms tend to develop fruits larger than the wild varieties; botanists are not certain whether this trait is the result of better cultural techniques or the natural tendency for humans to pick the largest fruits, which contain next years» seed.

Thousands of years ago in Europe upon the domestication of cows, the a2 variety of beta - casein mutated to what is now knows as the a1 protein.

Since those dogs lived thousands of years after domestication, the findings suggest the first domesticated dogs were no better equipped to digest starch than wolves were.

The other, more popular explanation proposes that the advent of agriculture and the attendant development of human settlements in the Middle East around 10,000 years ago created scavenging opportunities for animals bold enough to exploit them and that wolves themselves thus initiated domestication.

Archaeologists have unearthed a clutch of domesticated turkey eggs used as a ritual offering 1,500 years ago in Oaxaca, Mexico — some of the earliest evidence of turkey domestication.

Genetic data from ancient Scythian horses indicates that more than 2,000 years of domestication caused changes in horse genes related to mammary gland development and milk production.

«Archaeological excavation unearths evidence of turkey domestication 1,500 years ago: Eggshells and bones from baby turkeys among earliest evidence for turkey domestication.»

The tree, above, also reveals that in 6000 years of domestication, breeders have left a vast swathe of possible varieties unexplored.

New techniques (some developed in the last two to three years) for analyzing fragile DNA from ancient bones offer genetic snapshots of domestication as it played out long ago.

A 33,000 - year - old incipient dog from the Altai Mountains of Siberia: Evidence of the earliest domestication disrupted by the Last Glacial Maximum.

At 36,000 years old, the Goyet pooch pushed dog domestication back to well before glaciers reached their peak coverage of the Northern Hemisphere.

Domesticated horses living 2,300 to 2,700 years ago — about the midpoint of horse domestication — had a wide variety of Y chromosomes, the researchers reported April 28 in Science (SN: 5/27/17, p. 10).

Instead, phylogenetic analysis shows Przewalski's horses are feral, descended from the earliest - known instance of horse domestication by the Botai people of northern Kazakhstan some 5,500 years ago.

Burger and her colleagues are primarily interested in the domestication of camels, which took place around 3,000 to 6,000 years ago.

The beginning of agriculture and animal domestication, which began in the Near East before 11,000 years ago, had a tremendous impact on human lifestyle.

But the wildcat is fierce and feral, whereas the housecat, thanks to nearly 10,000 years of domestication, is tame and adaptable enough to have become the world's most popular pet.

Remains from Kazakhstan's more than 5,000 - year - old Botai culture have yielded the earliest direct evidence for domestication of these versatile beasts, scientists report.

As a researcher focused on an earlier period, she was more comfortable than some of her peers in accepting that domestication prior to the advent of agriculture — roughly 12,000 years ago — was even possible.

The genome data set generated in the study also reveals important lessons for the history of horse management, which started some 5,500 years ago, and animal domestication as a whole.

In a dramatic example of the power of domestication, beginning some 9000 years ago people in Mexico and the U.S. Southwest transformed the unappetizing grass called teosinte into the many - kerneled maize that today feeds hundreds of millions around the world.

In the case of horse domestication, it is likely that the demographic collapse within the last 2,000 years reduced the efficacy of negative selection to purge out deleterious mutations, which could then accumulate in the horse genome.

Whole genome sequencing of modern and ancient horses unveils the genes that have been selected by humans in the process of domestication through the latest 5,500 years, but also reveals the cost of this domestication.

The domestication of the horse some 5,500 years ago ultimately revolutionized human civilization and societies.

One beautiful case of parallel evolution is the double domestication of rice in Africa as well as Asia, which was followed by its double «de-domestication,» or reversion to a wild form, all within the roughly 10,000 years since hunter - gatherers became settled farmers.

These were carefully selected to unambiguously predate the beginning of domestication, some 5,500 years ago.

No written records predate the arrival of Spanish explorers in the Americas, but the earliest archaeological evidence for maize domestication dates back around 8,700 years.

This suggests that the genetic variation was already present when domestication of the dogs started, 15,000 years ago.

«These associations support the hypothesis that Nosema escaped into wild populations from heavily infected commercial colonies, at least during the earlier years of bumble bee domestication in the U.S.,» she said.

I expressed surprise that after 3000 years or so of domestication, within a series of industries of great economic and social importance, the kind of data that Wemmer and Krishnamurthy are now collecting and the standards they seek to impose should still be lacking.

Wolves were domesticated more than 15,000 years ago and it is widely assumed that the ability of domestic dogs to form close relationships with humans stems from changes during the domestication process.

The new findings offer an informative snapshot in the 10,000 - year evolutionary history of maize and its domestication, the researchers say.

To better understand the domestication history of the world's most produced crop, Wales and his colleagues, including Jazmín Ramos - Madrigal, sequenced the genome of a 5,310 - year - old maize cob from central Mexico.

Some argue that, in the course of over 10,000 years of domestication, dogs were selected for their cognitive abilities, such as following commands.

They date dog domestication to between 11,000 and 16,000 years ago, before the rise of agriculture.

As domestication must have occurred subsequent to the dog — wolf divergence and before Southeast Asian dog divergence (∼ 17,500 — 23,900 years ago; Fig. 5b) our results provide an upper and lower bound for the onset of dog domestication, between ∼ 20,000 and 40,000 years ago.

Finally, we obtain divergence estimates between Eastern and Western dogs of 17,000 — 24,000 years ago, consistent with a single geographic origin for domestication, the timing of which we narrow down to between ∼ 20,000 and 40,000 years ago.

This is consistent with recent findings that AMY2B copy number is highest in modern dog populations originating from geographic regions with prehistoric agrarian societies, and lowest from regions where humans did not rely on agriculture for subsistence34 and supports the claim that the expansion occurred after initial domestication (possibly after the migration of dingoes to Australia 3,500 — 5,000 years ago) 34.

Frantz et al. 12 also estimate a relatively recent east — west dog divergence (14,000 — 6,000 years ago), which, placed within the context of existing archaeological data, they explain with a dual origin of dog domestication.

Horse domestication changed the course of human history, and the starting point seems to be at least 5,500 years ago with the Botai people, who lived in what is now northern Kazakhstan.

Greger Larson, a biologist at the University of Oxford who studies domestication, recalled hearing about Pope Gregory at a conference a few years ago.

domestication (v. domesticate) A process of producing a tame version of an animal from a wild one, which can take thousands of years.