Sentences with word «tameness»

Experimental selection for tameness in silver foxes [7], rats [8,9] and mink [10] have shown the power of the directed pathway of domestication.

It is usually very difficult to accurately assess the degree of tameness of a free roaming cat.

«This is a needed paper that convincingly shows some of the drivers of island tameness in lizards.»

But despite this largely anecdotal evidence for island tameness, «no one has ever established that it's a general phenomenon in any group», says Cooper.

This article appeared in print under the headline «On tameness and tail - dropping in island lizards»

In the animals we domesticated through genetic transformation, «Wild, human - threatening, and human - fearfulness instincts are eliminated and replaced by tameness, an acceptance or desire to be near humans, and often, other specific human - serving personalities.»

«Other studies have seen a relationship between tameness and stress responses in animals,» said Jessica Hekman, the first author of the paper who worked on the study as a graduate student in the laboratory of University of Illinois animal sciences professor Anna Kukekova.

A combination of increasing human population density, better hunting methods and climate change may have reduced the availability of prey and pushed some wolves towards scavenging, which favoured tameness and smaller size.

Stock markets have seen steady gains with little volatility in 2017 — do not let the recent tameness instill a false sense of security as markets can periodically behave like wild beasts.

From the beginning, the researchers took great pains to select birds only for their behavior: Jungle fowl were tested for tameness at 12 weeks old, before they reached sexual maturity.

But scientists didn't have a unifying explanation for why the physical traits of domestication syndrome were linked to tameness until three years ago.

The work has shown that selecting for tameness alone can also produce a whole suite of other changes (curly tails, droopy ears, spotted coats, juvenile facial features) dubbed the domestication syndrome.

Based on that thinking, researchers imagined that about 9000 years ago, humans corralled a few wild boars and — by separating them from their fellows and breeding them for favorable traits like tameness, size, and meatiness — they developed the domesticated oinkers that we see all over the world today.

In a renowned study started back in the 1950s, Russian researchers found that captive silver foxes bred for tameness also exhibited a suite of other traits, such as white patches of fur on their heads, curly tails, «feminized» faces with shorter snouts and floppy ears, and skulls in males that weren't much larger than in females.

Darwin also was the first to discover that selective breeding for tameness produced similar side effects in different animals, including smaller brains.

Recent research has found that a domesticated strain of rat selectively bred for tameness almost never bites human handlers.

The leading mechanistic explanation is that selection for tameness results in developmental changes in the neural crest that produce this cascade of features [6].

For a film focused on teenage angst and invaders from other planets, I AM NUMBER FOUR shows a curious tameness.

Marguerite suffers from a storytelling tameness that erodes the power of its subject.

The relative tameness of the concept's exterior styling — apart from those laser - beam head - and taillight accents — suggests we may be looking at something that could look a lot like what we'll be looking at less than two years from now.

With this exhibition, one can see an answer in its very tameness.

On entering Qwaypurlake, a group exhibition curated by Simon Morrissey, what strikes you is the apparent tameness, even conservatism, of the works included.

The small size and tameness of island foxes are traits often linked to insular evolutionary pressures [1].

For the first time, domestication researchers had a hypothesis about the link between tameness and physical traits that could really be put to the scientific test.

A combination of increasingly dense human settlement, people becoming better hunters and climate change may have reduced the availability of prey and pushed some wolves towards scavenging, which favoured tameness and smaller size.

Taming of the few «Island tameness is an old idea, but there have been few tests of it,» says Dan Blumstein, a behavioral biologist at the University of California, Los Angeles.

Changes in the cells» migration might account for many physical traits linked to tameness in domesticated animals.

Belyaev observed that as these wild foxes were selectively bred for tameness over several generations, other characteristics changed profoundly too.

They, therefore, received more attention, food and protection, which gave them a breeding advantage, and they passed on this favorable trait, call it «tameness,» to their offspring.

After thousands of years of inadvertent selection for «tameness» the camp wolves started to become dependent on their human hosts and to even look different to their still wild ancestors.

(Adventures of Ideas, New York: The Free Press, 1967, 257) These discordant feelings, in themselves destructive and evil, make a contribution by producing «the positive feeling of a quick shift of aim from the tameness of outworn perfection to some other ideal with its freshness still upon it.»

There is no reason to suppose that Strauss joined Nietzsche in overestimating «the tameness of modern Western man»; nor did Strauss use all «the power of passionate and fascinating speech» that he possessed to make his readers «loathe, not only socialism and communism, but conservatism, nationalism, and democracy as well.»

After hundreds or thousands of years of inadvertent selection for «tameness» the camp wolves started to become dependent on their human hosts and to even look different to their still wild ancestors.

They, therefore received more food and protection, which gave them a breeding advantage, and they passed on this favorable trait, call it «tameness,» to their offspring.

Thus the contribution to Beauty which can be supplied by Discord — in itself destructive and evil — is the positive feeling of a quick shift of aim from the tameness of outworn perfection to some other ideal with its freshness still upon it.

It rescues the whole from the tameness of a merely qualitative harmony (282 - 83).

It came to symbolise his tameness after a summer of speculation about whether he would challenge Gordon Brown for the party leadership.

Humans may have waited until these creatures showed some semblance of tameness on their own before helping the process along she says.

Scientists agree that dogs stem from wolves, but where, when and how many times dogs were domesticated — passing down tameness and other traits over generations — has been rethought many times in the last few years (SN: 7/8/17, p. 20).

They compared six foxes selectively bred for tameness and six foxes selectively bred for aggression.

«If confirmed, our finding could help explain why tame foxes are not stressed so easily as foxes that have not been selected for tameness,» Kukekova said.

Choosing animals for tameness might be selecting for ones that have changes in how their neural crest cells function, the researchers proposed in Genetics in 2014 (SN: 8/23/14, p. 7).

Selecting animals for tameness, they said, could alter genes that control a group of developmentally important cells called neural crest cells.

One hypothesis is that tameness, which involves a calmer nervous system and a dampened stress hormone response, results from alterations in neural crest cells.

Changes in body size, reproduction and metabolism happened quickly, even though the researchers were only choosing birds for tameness.

That's different from wild animals that have been tamed but don't pass on that tameness to the next generation.

It wasn't until 2014, however, that researchers offered a single explanation for the phenomenon of floppy ears, smaller teeth, tameness and other «domestication syndrome» traits: a mild deficit in neural crest cells.

Many people think it was about the relationship; tameness and docility were the most attractive qualities in potential animal pals.

This article appears in the July 8, 2017, issue of Science News with the headline: «The road to tameness: Fresh ideas emerge about the origins of humans» relationships with their favorite species.»