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Archive for July, 2012

Derecho II?

Please weaken before you get here!

 

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Chris sent me a link to a border collie blog called Champion of My Heart.

The post in question was about how to get a dog to leave venomous snakes alone.

The blog’s author is having lots of trouble getting her border collie to leave rattlesnakes alone, and she has been bitten twice.

The author wants to know some way to get her dog to avoid snakes, but it doesn’t appear that there are any alternatives besides doing a “snake-proofing.”

Snake-proofing is when a dog is exposed to a snake– usually a dead one or one that is safely confined–and when it starts to focus in on the snake, it receives a shock from an electronic collar. The dog learns to associate the smell of a snake with shock and learns to avoid them.

Now, a great many people are skeptical of electronic collars. I do tend to think they are over-used and over relied-upon, but they do have a purpose in certain situations.

A snakebite can be fatal to a dog.

It certainly will be painful.

Both of these things are far worse than the electric shock the dog would experience in being snake-proofed.

So the use of an electronic collar in this situation appears to be a necessary evil.

If a little shock can prevent a dog from dying from a snakebite, then it appears that a traditional snake-proofing session might be justified.

It’s not that I’m defending what everyone is doing with electronic collars.

I’m not.

But with this situation, it might be a good idea to use one.

Now, the dog has to be exposed to virtually every snake species in a region if the snake-proofing is to be successful. Each species has its own odor, and dogs have harder time generalizing their behaviors than humans do.

So if a dog is proofed off of timber rattlers, it likely won’t be proofed off of copperheads.

I live in a very unsnakey part of the country, and most golden retrievers don’t pay any attention to snakes. One of my dogs was bitten by a copperhead when she dropped a tennis ball on it. It was a mostly dry bite, and after getting an antivenin shot, she was fine in within a few days.

But if a little shock treatment prevents the a dog from bothering snakes, it can be given more liberty to run about.

Going through snake-proofing would just be a small price to pay for a dog to be able to run around safely.

In this case, shocking is worth it.

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Dog training as a craft or science

Raegan left a wonderful link to a blog post by Dr. Sophia Yin on whether dog training should be a craft or a science.

In the post, Dr. Yin explains that the military has been able to train dogs to take commands from radios or laser guides because it adopted a “dog training as science” paradigm.

She begins with discussing the story of a dog trainer for the Dutch police named Simon Prins. Prins was starting to question how far traditional methods could actually take police dogs. Police departments now required dogs that could do a whole lot more, and Prins thought he could come up with a better system that could unleash the potential in so many police dogs:

In 1996, Simon Prins, co-author of K9 Behavior Basics: A Manual for Proven Success in Operational Service Dog Training (2010), was hired to lead an innovative project for the Canine Department of the Netherlands National Police Agency. A test project with a three-year timeline, it would continue if it were a success. The project included a detailed list of tasks for dogs to perform.

“This included normal operational tasks, such as tracking, explosive and narcotics detection,” says Prins. “Also climbing, rappelling, traveling by helicopter and boat, and, the most challenging, training dogs to work with cameras and to follow radio or laser guidance at long distances.”

Although Prins had been a patrol-dog handler in the regional police force for only a few years, he was selected for this project because he was seen as an innovator. “I had been questioning our traditional force techniques because I noticed that dogs would shut down and stop working, or my police dog would become aggressive to me and to the trainer. So I was already looking for new methods.”

New methods were what the job was all about. “The traditional [force-based] trainers all said that radio or laser guidance was not possible,” says Prins. But he was sure there must be a way; so, even though he would not be able to return to his old job if he failed, he accepted the challenge. Within three years, he had succeeded in completing all of the tasks set for him, as well as a few more.

So all these military and police dogs that now take commands from the radio or from laser guiding are only able to do so because they are trained using scientific dog training methods.

However, because dog training had always been treated like an ancient craft that was passed down from generation to generation, it was assumed that it was impossible to train dogs to do these tasks.  This is a very good example of how the “dog training as craft” paradigm has stymied advancement:

At this point, you may be asking yourself — given the fact that people have been training dogs for more than 4,000 years — why did traditional trainers feel these new tasks were impossible. Also, if a guidance system had already been developed for cats [using a cochlear implant] in 1967 in the U.S., why did it take Prins three years to reinvent the wheel 30 years later?

Bob Bailey, who worked on the 1967 project and later become co-owner of Animal Behavior Enterprises after marrying its co-founder, Marian Breland, explains. According to Bailey, it was the advent of animal training and behavior as a science that allowed them to develop the system for dogs, cats and, later, dolphins. “Dog training has been practiced as an ancient craft,” says Bailey. “The science of training wasn’t developed until the 1940s with B.F. Skinner.”

What’s the difference between craft and science? According to Bailey, “Crafts generally develop over thousands of years and tend to preserve what’s old and what has been done before. Information is passed down in secret from master to apprentice, and the apprentice must never question the master.” As a result, when errors are introduced, they tend to be preserved. Another characteristic of a craft is that a change is usually designed only to solve an immediate problem. Says Bailey, “Rarely do they look for general principles.”

Science, on the other hand, is a systematic way of asking questions, a process that eventually weeds out mistakes. It’s guided by principles and data, approaches change and are revised as new information comes to light. As a result, science advances quickly compared to craft.

Bailey backs up his description with an example: “For 1,000 years, the Chinese used gun powder to build small rockets. Then the Turks decided to build bigger ones, which they used on the British. It took them 800 years to develop the technology.” Then, in the 1900s, science and technology stepped in. In 1926, American rocket pioneer Robert Goddard launched the first liquid-propellant rocket. In 1969, less than 50 years later, the U.S. sent a rocket to the moon. [Emphasis mine].

“So it took 800 years of craft to send a six-foot rocket half a mile and less than 50 years of science to send a rocket to the moon,” Bailey summarizes.

I should mention that Bob Bailey and the Breland family did use Skinner’s methods to train animals, but their work has led to a refinement of Skinner’s work. Their work includes discovering concepts like instinctive drift, and they no longer accept that animals are born blank slates, as behaviorism had initially posited.

Refining Skinner’s work through new discoveries does not mean that the behaviorist theory of learning has been negated. Refinement theories in light of new findings is what science is all about. Darwin never knew anything about genetics. In fact, he actually wound up rejecting some parts of his theory of evolution through natural selection because he had no understanding of how inheritance worked. When Mendel’s work became accepted, Darwin’s theory of evolution became much better understood.

Craft doesn’t refine anything.

Craft is passed onto the apprentice with a series of traditions and shibboleths. Things must be done a certain way, even if they are ineffective.

To do otherwise is to insult the practitioners of the craft who came before. In this way, craft is riddled with dogma.

And this, folks, is why so many modern dog trainers have rejected training methods that have been developed over the centuries.

Better methods have availed themselves through rational scientific inquiry and experimentation.

And yes, they reject them.

No one cares if the ideas of those who came before are negated.

In science, negation of erroneous ideas that others may have held in the past is a major positive feature in science.

Science focuses on what is known now, not what others believed thousands of years ago.

These scientific training methods work, and they are continually being refined as new evidence becomes available.

Holding onto the past, even when it is less effective, is tradition for tradition’s sake.

It’s actually the main target of Robert Frost’s “Mending Wall.”  Poor readers of poetry might assume that this poem is a celebration of building stone walls with one’s neighbors. It is not.

The narrator in the poem is actually quite ticked that he has to help build this rather pointless wall.  The narrator complains “Before I built a wall I’d ask to know / What I was walling in or walling out / And to whom I was like to give offense.”  And when he points out that the neighbor’s pine trees will never come onto his property and that his apple trees won’t either, all the neighbor can do is offer up the tired bromide that “Good fences make good neighbors.”  The narrator points out that a wall would really be of use only where there are cows to keep out or in, but all the neighbor says is that same bromide. It soon occurs to the narrator that no matter what he says, the neighbor will still be beholden to that bromide, which his father instilled upon him years ago:

Bringing a stone grasped firmly by the top

In each hand, like an old-stone savage armed.

He moves in darkness as it seems to me~

Not of woods only and the shade of trees.

He will not go behind his father’s saying,

And he likes having thought of it so well

He says again, “Good fences make good neighbors.”

And that’s why dog trainers didn’t know you could teach a dog to take commands from a radio or laser.

They were too imprisoned to tradition, and that’s why the science-based dog training paradigm has had so much success.

But because so many people still view dog training as a craft, we’re going to be stuck in so many places.

And this problem doesn’t just exist in dog training.

Tradition for tradition’s sake has also make many people blind to the real problems facing dog gene pools that are being “improved” in closed registry systems.

And these problems aren’t just limited to dogs.

It’s really a major problem for the human condition as a whole.

And it’s one that we need to fix if we are ever to advance to our true potential as a species.

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Creationist fool has some nice dogs

Source.

Buddy Davis might be a nice guy, but he promotes lots of ignorance as a creationist musician.

He’s best known for this wonderful song:

Source.

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Serval or savannah cat discovered dead in Canton, Ohio

From CantonRep.com:

Eric Blackshear wasn’t sure what he was going to find when he was called about 8:30 a.m. Wednesday to remove a dead animal from the roadway.

As a 17-year veteran of the Canton Street Department, Blackshear has received his share of calls to pick up different animals — coyotes, foxes, one time even a wolverine: “And I thought, ‘yeah, right.’ ”

This time, he was told it was a dead leopard that might have been struck by a vehicle in the 1100 block of Navarre Avenue SW.

“When I hear these things, I still have to go down and check it out and see what it is,” he said.

Indeed, Blackshear found some type of cat, and he brought the animal to The Repository before delivering it to the city service center, where it was to be bagged and eventually disposed of in a landfill.

“It was a beautiful creature,” said Kevin Monroe, the city’s superintendent of public works. “It had been declawed, suggesting it had been someone’s pet.”

Monroe said his crews remove about a half dozen dead animals a day from city streets — usually squirrels, possums and other such critters.

“This created a bit of a stir because it’s an unusual type of cat,” he said. “Everybody wanted to see this one.”

Monroe said his staff notified the Ohio Department of Natural Resources’ Division of Wildlife and the Stark County Wildlife Association.

The ODNR’s Jamey Graham said it was difficult to tell exactly what type of cat the animal is based on photos emailed to her by The Rep. It could be an African serval, she said.

A serval is a medium size cat that is strong yet slender with long legs and a relatively short tail.

Another expert, Pete Mohan, director of animal operations at the Akron Zoo, also looked at photos and figured the cat is most likely a Savannah — a hybrid between a serval and a domestic house cat.

“There’s actually a Savannah cat breed,” said Mohan. “These cats are typically raised as pets.”

There are several breeders of Savannahs in the Stark County area.

The Akron Zoo has lions, tigers, jaguars and snow leopards, “but nothing closely related to these guys,” Mohan said, explaining that it’s difficult to identify the type of cat with 100 percent certainty without seeing it in person.

I think it’s likely a pure serval, but it could be a savannah with a lot of serval blood.

If you’re going to produce savannahs, you have to have serval or two around.

See related post:

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The Illuminati are out to get Cesar Millan!

I just came across this bizarre little website called “Beyond Cesar Millan…And Beyond.”

I don’t know who writes it, but the author obviously has issues with the English language and normal writing style. The voice is disjointed, if not a bit paranoid. (More on that in a second).

I’ve tried to get the gist of the author’s views, but most of the posts involve cherry-picking old scientific studies, which are all designed to exculpate Cesar Millan’s piss-poor understanding of ethology and dime store recommendations on how to make a dog  behave.

Basically, this is what creationists would do in defence Kent Hovind. Like, Hovind, Cesar has no credentials, and also like Hovind, he’s prone to making crap up. I do believe Cesar pays his taxes, so that’s where the analogy ends!

Cesar lovers accuse critics of only believing what they read.

I have to wonder if these people ever read. If you watch a lot TV and believe everything you see, you’re going to have a very distorted view of reality.

The best part of this batshit little blog is the page entitled “Conpirasy?”

OMG. The Illuminati are after Cesar!!!!!! They are so bad, they can’t even spell conspiracy correctly!

They don’t want you do know!

The main thrust of this page is that all the dog experts don’t want you using Cesar’s methods because that will take away from their business.

Basically, it is exactly the same conspiracy one would hear from a crackpot herbalist, who will tell you that vaccines are killing you and that modern medicine is making you sicker:

The responsibles of this Indoctrination are these schools and associations that have made of dog training an Industry.

They pump out from their schools Inexperienced and Incompetent trainers just as much “certificates” they can print.

What matters to those who are in charge of the business is the control of the market, don’t be naive, the pet Industry is a market of Billions of dollars: Schools, Associations, registers and memberships, Seminaries, Books, Authors, Vets, Drugs, Food, Tools, Toys, Insurance, Websites, Advertising on those sites etc.

Any other approach goes against their Interets.

A little variation on percentage means millions of dollars in loses for them

I have been witness of comercial Blackmail by part of these Associations like when Frontline make partnership with Cesar Millan to promote their products

Altogether with those trainers with a Holier-than-Thout attitude are these gullible people that buy the Feling-good-about-myself product

They have become Fear Mongerers and their associations, truly Death Squads Associations.

OMG. DEES EES BULLSHEET.

The people who complain about Cesar have actual degrees in animal behavior.

They are real experts. They are professionals like dentists or physicians or psychiatrists.

If you think Cesar’s expertise, whatever that is, somehow trumps people who have had years and years of training in that field, then why don’t you spend all your money on alternative medicine?

Those alternative medicine people make very much the same claims. Surely their anecdotes and marketing techniques are much better evidence than what we could learn from clinical trials.

That’s pretty much what’s being said here.

Whoever wrote this paranoid drivel is probably getting all his fillings removed and is worried about fluoride in the drinking water.

It is not an appeal to authority argument to say that credentialed specialists know more than TV personalities.

In general, if we want effective treatment or want to understand what’s really going on in the world, we listen to what specialists like this say.

We don’t watch TV in order to find out what’s the most effective treatment for cancer.

I remember hearing a rumor by a fairly ignorant person that dentists were very bad about scratching holes in the teeth of their patients, thereby creating cavities to fill.

That’s nonsense, of course.

But I hear echoes of it on this website.

But the sad thing is that it’s not just foolish people like this person who write this sort of crap.

Several so-called rationalist bloggers are just as prone to supporting the Cesar Millan marketing cult as anyone.

Luckily, Cesar’s show is in its last season.  He will have his magazine. He’ll have his followers.

The Cear Millan star has risen and is now starting to fall.

We actually might be able to move beyond the snake oil now, and real professionals will get the respect they certainly deserve.

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Very different insects evolve the same adaptation to deal with plant toxins

Now for one that just blew me away!

From Science Daily:

A study published online July 23 in the Proceedings of the National Academy of Sciences finds that in the case of insects that developed resistance to a powerful plant toxin, the same adaptations have occurred independently, in separate species in different places and times.

The paper examines 18 insect species across four orders — beetles, butterflies and moths, flies, and true bugs — that all feed on plants containing powerful toxins called cardenolides.

Common to milkweeds and foxglove, cardenolides are lethal to nearly all insects and function effectively as a defense against pests. Cardenolides work by binding to a cell’s sodium pump, one of the most fundamental systems found in all animal cells. The sodium pump works when an essential enzyme (Na,K-ATPase) carries important elements, sodium and potassium, across the cell membrane. Cardenolides bind to the enzyme and disable it, thereby shutting down cells, which results in severe damage.

Among the 18 insects surveyed, the researchers found a few methods that the insects use to resist cardenolides. In monarch butterflies and a species of leaf beetle, for example, resistance is due to a specific mutation — called N122H — of the Na,K-ATPase gene. The mutation reduces cardenolide binding to the sodium pump enzyme.

“Already knowing how monarchs deal with the toxin, we wanted to see if it was the same molecular solution used by beetles, flies and true bugs that are also resistant to cardenolides,” said Anurag Agrawal, a Cornell professor of ecology and evolutionary biology and a co-author on the paper. Susanne Dobler, a professor of molecular evolution at Hamburg University, is the paper’s lead author.

By examining molecular changes in the sodium pump gene, the researchers found the mutation N122H in all four orders of insects studied. Furthermore, they discovered a second mutation in the same gene that also conferred resistance in 11 of the 18 species.

“This is truly a remarkable level of evolutionary repeatability and suggests that evolving resistance to the plant toxin had very few effective options,” said Agrawal.

The researchers tested the effectiveness of these gene changes by inserting the single Na,K-ATPase mutations into cell cultures and then dosing those cultures with cardenolides. They found the mutations gave the cells resistance, and when cells were given the two mutations that repeatedly evolved together, they had twice the resistance as cells with a single mutation, implying a synergistic effect.

The standard gene for the sodium pump is essentially the same in all insects, and even mammals carry the gene in a relatively unmodified form. The sodium pump thus originated from a common ancestor hundreds of millions of years ago and is central to the functioning of most animals. Out of that background, insects from different orders over the last 300 million years specialized on plants with cardenolides and evolved resistance independently, and in numerous cases, through exactly the same gene change.

Convergent evolution isn’t anything new to science.

However, convergent evolution using the same mutation is!

This is pretty damn amazing. Here, you have animals that are very different in terms of their phylogeny and taxonomy, but they have exactly the same mutation that allows them to deal with these particular toxins.

I don’t know if such a thing has been discovered before, but it is pretty astounding.

Mutations are random. All of us have some mutations. Most are neutral. Some are advantageous. Some are deleterious.

The chances of organisms evolving a similar adaptation using the same mutation would appear to be quite low.

But here we have an example of that very unlikely phenomenon happening.

Now, I’m sure that the creationists will have a lot of fun with this one, but the truth is I don’t know of a single other case in which very organisms from very divergent ancestries evolve convergent adaptations through the same genetic mechanism.

It’s a weird case.

The authors think that the reason why this mutation has been implicated in all these different species is that evolving this particular adaptation just has such limited options.

It’s not likely applicable to other situations.

For example, the chances that all the hairless dog breeds in the world that have a dominant hairless allele that stems from the same mutation all developed that mutation independently are unbelievably low. Unlike these insects, they all derive from a common ancestor that lived in Mexico 4,000 years ago.

It’s a giant leap to use this particularly unusual discovery in insects and apply it to other organisms.

And I hope people can refrain from doing so.

But they won’t.

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