Example of evolution evolving a new feature in dogs (new muscles)

pitabread

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News article here: Dogs’ Eyes Have Changed Since Humans Befriended Them

Paper here: Evolution of facial muscle anatomy in dogs

Domestication shaped wolves into dogs and transformed both their behavior and their anatomy. Here we show that, in only 33,000 y, domestication transformed the facial muscle anatomy of dogs specifically for facial communication with humans. Based on dissections of dog and wolf heads, we show that the levator anguli oculi medialis, a muscle responsible for raising the inner eyebrow intensely, is uniformly present in dogs but not in wolves. Behavioral data, collected from dogs and wolves, show that dogs produce the eyebrow movement significantly more often and with higher intensity than wolves do, with highest-intensity movements produced exclusively by dogs. Interestingly, this movement increases paedomorphism and resembles an expression that humans produce when sad, so its production in dogs may trigger a nurturing response in humans. We hypothesize that dogs with expressive eyebrows had a selection advantage and that “puppy dog eyes” are the result of selection based on humans’ preferences. (emphasis added)
 

Monk Brendan

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News article here: Dogs’ Eyes Have Changed Since Humans Befriended Them

Paper here: Evolution of facial muscle anatomy in dogs

Domestication shaped wolves into dogs and transformed both their behavior and their anatomy. Here we show that, in only 33,000 y, domestication transformed the facial muscle anatomy of dogs specifically for facial communication with humans. Based on dissections of dog and wolf heads, we show that the levator anguli oculi medialis, a muscle responsible for raising the inner eyebrow intensely, is uniformly present in dogs but not in wolves. Behavioral data, collected from dogs and wolves, show that dogs produce the eyebrow movement significantly more often and with higher intensity than wolves do, with highest-intensity movements produced exclusively by dogs. Interestingly, this movement increases paedomorphism and resembles an expression that humans produce when sad, so its production in dogs may trigger a nurturing response in humans. We hypothesize that dogs with expressive eyebrows had a selection advantage and that “puppy dog eyes” are the result of selection based on humans’ preferences. (emphasis added)
I heard this myself on the news today.

What I find odd that that both dogs and wolves are Canis lupus==in other words, the same species.
 
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pitabread

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I heard this myself on the news today.

What I find odd that that both dogs and wolves are Canis lupus==in other words, the same species.

Domestic dogs are canis lupus familiaris; a sub-species.

What is interesting is how they evolved an eye muscle and associated expressions not present in wolves.
 
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Mathetes66

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Dogs haven't evolved that. They have always had it. No evolutionary process has been shown. Those muscles didn't change in dogs. They have remained that way. And the same for wolves. They have remained that way.
 
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Occams Barber

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Dogs haven't evolved that. They have always had it. No evolutionary process has been shown. Those muscles didn't change in dogs. They have remained that way. And the same for wolves. They have remained that way.

This is a quote taken directly from the source paper referenced in the OP:
Materials and Methods, Anatomical data
...The main finding is that facial musculature between domestic dogs and gray wolves differed only around the eye. While the LAOM was present in dogs, in the gray wolves, it was never present. In wolves, a tendon was sometimes observed that blended with the medial aspect of the fibers of the orbicularis occuli muscle, near the region where an LAOM would normally be expected

(LAOM = levator anguli oculi medialis muscle)

Dogs evolved from wolves.
Dogs have an LAOM.
Wolves don't have an LAOM.
Therefore LOAM evolved separately in dogs.
OB
 
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Mathetes66

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Therein lies the problem. Dogs didn't evolve from wolves. That is an hypothesis but not a proven one. There is no verifiable evidence or evolutionary transitional forms between the two showing a clear & verifiable transition to definitively say this happened.
 
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Occams Barber

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Therein lies the problem. Dogs didn't evolve from wolves. That is an hypothesis but not a proven one. There is no verifiable evidence or evolutionary transitional forms between the two showing a clear & verifiable transition to definitively say this happened.

Next you'll be telling me that the sun didn't rise this morning.

Even Creationists accept that dogs evolved from wolves. They just argue about how long it took given the Flood problem. This link takes you to the Institute for Creation Research
(On the Origin of Dogs)

This link takes you to the Wiki article on the Origin of the Domestic Dog. It has several pages of info covering all you need to know.
Origin of the domestic dog - Wikipedia

If you don't believe Wiki, follow the links listed in the article, to see the original material.

tl:dr?
There is both genetic and fossil evidence for the origin of the domestic dog. Creationists agree.
OB
 
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Ophiolite

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Are they still a dog? Thought so.
Repeating a valueless trope has, guess what, no value. What is it about many (that's many) small (really small) changes (yes, actual changes) accumulated (like small steps letting you walk a 1,000 miles) over a long time (hundreds of thousands and millions of years) is beyond your comprehension?

If we saw dramatic, short term evolution, wherein a population of dogs changed into something else in a generation or two, it would essentially kick evolutionary theory into touch. Now, I suspect you know that, so why are basing your argument on a concept that it not relevant to evolutionary theory? I'm genuinely curious as to why you would do that.
 
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pitabread

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Aren't dogs a different species from wolves, like the zebra is different from the horse?

Depends who you ask. There is debate as to whether they should be classified as a subspecies of wolves rather than a separate species.

This highlights the fact that such classifications are essentially artificial.
 
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OldWiseGuy

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Depends who you ask. There is debate as to whether they should be classified as a subspecies of wolves rather than a separate species.

This highlights the fact that such classifications are essentially artificial.

Is there an ongoing breeding program to determine how long it takes for a wolf to turn into a dog? This would settle the matter once and for all.
 
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AV1611VET

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Aren't dogs a different species from wolves,
Same kind though (i.e., Canis].
Wolves (canis lupus), coyotes (canis latrans), and domestic dogs (canis familiaris) are closely-related species. All three can interbreed and produce viable, fertile offspring — wolfdogs, coywolves, and coydogs. Through DNA analysis, scientists have established that the wolf is the ancestor of the dog.

SOURCE
 
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Sanoy

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The process has a name, domestication syndrome iirc. The more passive, sociable, traits are selected and that results in a particular phenotype. It can happen pretty quickly iirc. It's so interesting how body shape has such an inferred reaction on our consciousness.
 
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Mathetes66

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Thanks for the articles, Occams. You have given me a chance to explain myself as my prior statement was very brief without adequate explanation. Even the Wiki article you gave me show that scientists are not sure where the 'ancestral' lines came from, showing lines on different continents.

This again supports my premise that dogs didn't EVOLVE by natural selection & random gene mutations. Since wolves, dogs & coyotes can interbreed, they come from one kind of animals.

Second, the different lines on different continents, in my understanding as a creationist, demonstrate what happened at the tower of Babel when God confused the one language of those on the earth into many & thus people scattered all over the world. The table of nations from that scattering in Genesis 10 and 11 of the Bible can be used to accurately show the various nations and tribes that we see today & trace them back to that table of nations.

Third, though it can be shown that one line ties in with one line of 'domesticated dogs' coming from the gray wolf, others seem to come from an 'supposed' extinct line ancestors from other wolves, yet there is no fossil record to show this line.

Fourth, this identified musculature can't be verified from ancient animals, since they can't be tested in the laboratory, so there is no known way to conclusively say they had this characteristic; it has been tested only on known species today.

Fifth, this example is not one of natural selection & random genetic mutations because all these varieties of domesticated animals were designed by intelligent design. Mankind has deliberately interbred these animals using man's intelligence & thus we see what we see today for that reason.

Sixth, some domesticated dogs that have been interbred do not have this musculature around the eyes.

Seventh, some of the studies were very limited on species & specimens & this particular one was the one quoted by the Proceedings of the National Academy of Sciences (PNAS) & the study was done by FOUR different universities involved. Here is their conclusion & notice the specific words used in their statement:

"Since the muscles were robust in the dogs but not wolves, "that tells us that that muscle & its function are selected," she added."

This supposed conclusive statement came even though a spokesman said:

"the main limitation of the study was the small number of cadavers -- four wild wolves & six domestic dogs..."

So as I have always said, the evidence needs to be scrutinized & often it isn't the problem, the issue is how one interprets it & explains it. So when it says in this study that the function is 'selected' they imply natural selection & random genetic mutation when history clearly shows it was neither but interbreeding through man's intelligent design.

My cousin has a dog in Alaska that is half wolf & half Siberian husky. Wolves have a dominance system that they only make contact with those they consider 'alpha.' Others down the pecking order also do not make eye contact but avert their gaze downward or away. He would look at my cousin & his family with no problem but others he didn't consider 'alpha' he would not have any eye contact but would ignore them.

By the way, Siberian Husky's don't have this identified musculature around the eyes either.

Lastly, though I understand your comment, comparing my statement that dogs didn't 'evolve' in an evolutionary way through NATURAL selection or RANDOM genetic mutations, I explained why it wasn't natural nor random.

And your analogy that this would be like saying the sun didn't rise this morning is an oxymoron. The sun rising through physical constant laws doesn't have anything to do with natural selection nor random genetic mutations biologically nor has it changed like this characteristic in 'domesticated'--by intelligent human design--dogs.'

So thanks again for letting me explain myself in more detail.
 
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The IbanezerScrooge

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Is there an ongoing breeding program to determine how long it takes for a wolf to turn into a dog? This would settle the matter once and for all.

Not that I am aware of, but there have been some experiments with silver foxes.
 
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