How Do You Train A Dog To Sniff-Out Bombs

Photo credit: Sgt. Joshua LaPere for the U.S. Army

Priceonomics: How Do You Train a Dog to Sniff Bombs?

To a well-trained dog, nothing is more exciting than finding a bomb.

When Lucca, a German shepherd–Belgian Malinois mix, smelled explosives in the Nahri Saraj District of Afghanistan in March 2012, her tail started wagging. She looked toward her handler, Marine Corporal Juan Rodriguez. He patted her side and said in a singsong voice, “Good girl, Lucca!” before alerting his unit that Lucca had found a hidden improvised explosive device.

The thirteen-year war in Afghanistan was the longest in American history. The Iraq War lasted another eight, and America’s involvement in both countries has not truly ended.

In both cases, American troops faced insurgents whose most lethal weapon was the improvised explosive device (IED): explosives rigged to radio transmitters, timers, or motion sensors (stripped from washing machines, security floodlights, and garage openers) and buried along routes taken by American patrols.

The Department of Defense spent $19 billion researching the best way to detect IEDs before settling on an old technology: dogs. Lucca was one of over 2,500 dogs trained to associate the scent of explosives with a reward, teamed up with a soldier-handler, and sent to Afghanistan or Iraq.

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CSN Editor: So typical of the Pentagon .... after spending billions they then go back to what always worked before .... in the case of finding bombs .... dogs. But having said that ... this is a fascinating read.

Trained Dogs Can Help In Treating Veterans With PTSD

NPR: Veterans Say Trained Dogs Help With PTSD, But The VA Won't Pay

At a warehouse near Dallas, a black Lab named Papi tugs on a rope to open a fridge and passes his trainer a plastic water bottle with his mouth.

Service dogs are often trained to help veterans with physical disabilities. Now, a growing number are being trained to meet the demand from vets with post-traumatic stress disorder and other mental health issues.

Those dogs learn extra tricks — how to sweep a house for intruders, for example, so a veteran feels safe.

"We teach them something called perimeter, where they go into the house and they check, they just touch all the doors and all the windows," says Cheryl Woolnough, training director at Patriot PAWS, a nonprofit in Rockwall, Texas, that provides service dogs.

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CSN Editor: Everyone who has had a dog in his or her life knows how much of a support they can be during difficult times. But for veterans who are suffering PTSD .... their needs are different, and this is where a trained dog can provide a valuable service. Unfortunately .... dollars and cents are the priority here, and not taking of care of the patient.

The Family Tree Of DOGS

From pugs to pinchers and spaniels to samoyeds, one artist has created a dog family tree (pictured) that highlights the diversity of dogs and how breeds are interconnected

The Family Tree Of DOGS: From Tiny Chihuahuas To Rottweilers - This Infographic Reveals Exactly How Every Breed Is Related -- Daily Mail

* Family tree highlights the diversity of dogs and how the pure breeds are interconnected
* Chart features 181 dog breeds from tiny ‘toy’ animals like the pug and the fluffy pomeranian to working dogs like the Alaskan malamutes and family favourites such as golden retrievers and terriers
* It might seem incredible that dogs with such different visible characteristics – from their size to their type of hair – can be so different, but it is because all dogs are members of the same species – Canis lupus familiaris

Have you ever wondered how tiny chihuahua can be related to a rottweiler or a pit bull terrier can be similar to a dalmatian?

One artist has created a dog family tree that highlights the diversity of dogs and how breeds are interconnected.

From terriers to toys and mountain dogs to sight hounds, it delineates almost every standard pure-breed dog so you can see how one canine is connected to another.

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My Comment: Border Collie is my favorite dog (had one for 14 years). And for the GF .... she has a 2 year old Rottweiler right now.

Cross-Breeding Of Dogs Has Made It Difficult To Trace Their Genetic Roots

Modern Dog Breeds Genetically Disconnected From Ancient Ancestors -- E! Science News

Cross-breeding of dogs over thousands of years has made it extremely difficult to trace the ancient genetic roots of today's pets, according to a new study led by Durham University. An international team of scientists analyzed data of the genetic make-up of modern-day dogs, alongside an assessment of the global archaeological record of dog remains, and found that modern breeds genetically have little in common with their ancient ancestors.

Dogs were the first domesticated animals and the researchers say their findings will ultimately lead to greater understanding of dogs' origins and the development of early human civilization.

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My Comment: These results (I suspect) are going to be fascinating to read about when they are finally completed.

Dogs May Have Helped Man Out-Compete Neaderthals

Dogs 'Helped Man Out-Compete With Neanderthals' -- The Telegraph

Dogs could have been the deciding factor which enabled modern humans to out-compete with Neanderthals and colonise Europe, researchers claim.

Man's relationship with his best friend has lasted 32,000 years, with cave-dwelling hunter-gatherers using dogs to carry supplies so that they could save their energy for hunting.

The bond between man and dog arose at around the time Neanderthals began to surrender their dominance over Europe, which had lasted for the previous 250,000 years.

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My Comment: It appears that man's best friend has been a friend for a very long time.

Why Canines Yawn After Their 'Dog Tired' Owners

Open wide: Yawning is infectious - for dogs such as this Basset hound mid-yawn. Daily Mail

Revealed: Why Canines Yawn After Their 'Dog Tired' Owners -- The Telegraph

Dogs are compelled to yawn if they hear their owners do the same, a study has suggested.

Researchers claimed that dogs responded only to an audio cue such as a yawn even if they didn’t see the action taking place.

The study found this was particularly noticeable when the dogs were listening to the yawns of people they knew.

Scientists suggested the findings, presented at the National Ethology Congress in Lisbon, showed canines had empathy to human behaviours.

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My Comment: It should be noted that sometimes the owners yawn after their dogs do (at least in my case).

Dog Bites: The Stats

CSN Editor: From Live Science

Sharing A Bed with Fido Can Make You Sick

Women are more likely than men to report sleeping in the same bed with their dog, according to a 2005 study by the American Kennel Club. Credit: Dreamstime.

From Live Science:

Sleeping with, kissing and being licked by your pet can make you sick. Although they are not common, documented cases show people contracting infections by getting too cozy with their animals, according to work by researchers in California.

These so-called zoonoses include contracting plague from flea-infested pets, a MRSA (Methicillin-Resistant Staphylococcus aureus) infection, a bacterial infection resistant to multiple strains of antibiotics originating from the canine family, and various parasitic worms.

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My Comment: I had a dog for 14 years .... and they are telling me this now.

Kids Who Own Dogs Are More Active

From Live Science:

When little Johnny or Molly asks for a puppy for their birthday, parents may want to give in. New research in England suggests children whose families own dogs are more active than those without a furry friend running around.

The research could have implications for childhood obesity in the United States, where 17 percent of 2- to 19-year-olds are obese, according to a 2007-2008 survey by the Centers for Disease Control and Prevention (CDC). Among 6- to 19-year-olds, obesity has tripled over the past two decades, according to the CDC.

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Dogs Likely Originated In The Middle East, New Genetic Data Indicate

This evolutionary tree shows dog breeds and gray wolves. (Credit: UCLA)

From Science Daily:

Science Daily (Mar. 18, 2010) — Dogs likely originated in the Middle East, not Asia or Europe, according to a new genetic analysis by an international team of scientists led by UCLA biologists.

The research appears March 17 in the advance online edition of the journal Nature.

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Small Dogs Originated In The Middle East, Genetic Study Finds

Yorkshire terrier. (Credit: iStockphoto/Lenka Dankova)

From Science Daily:

Science Daily (Mar. 13, 2010) — A genetic study has found that small domestic dogs probably originated in the Middle East more than 12,000 years ago. Researchers writing in the open access journal BMC Biology traced the evolutionary history of the IGF1 gene, finding that the version of the gene that is a major determinant of small size probably originated as a result of the domestication of the Middle Eastern gray wolf.

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Grrr… What's 'Step Away From The Bone' In Dog?

From The New Scientist:

The canine phrase book has collected its first entries. Dogs understand the meaning of different growls, from a rumble that says "back off" to playful snarls made in a tug-of-war game.

Proving that animal vocalisations have specific meanings – and what they could be – is challenging. In 2008, Péter Pongrácz, a behavioural biologist at Eötvös Lorand University in Budapest, Hungary, monitored dogs' heart rates to show that they seem to notice a difference between barks aimed at strangers and those directed at nothing in particular. Now he has gone a step further and shown that dogs respond differently to different vocalisations.

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Canine Morphology: Hunting For Genes And Tracking Mutations

Researchers studying the dog genome have a new understanding of why domestic dogs vary so much in size, shape, coat texture, color and patterning. (Credit: iStockphoto/Nataliya Kuznetsova)

From Science Daily:

Science Daily (Mar. 3, 2010) — Why do domestic dogs vary so much in size, shape, coat texture, color and patterning? Study of the dog genome has reached a point where the molecular mechanisms governing such variation across mammalian species are becoming understood.

In an essay published in the March 2, 2010 issue of PLoS Biology, National Human Genome Research Institute (NHGRI) researchers discuss advances in understanding the genomic mechanisms controlling canine morphology.

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Small Dogs Originated In The Middle East

A single gene is responsible for the size of dogs -- big and small. Getty Images

From Discovery News:

These miniature mutts were the descendants of gray wolves, which also happen to be smaller than many other wolves.

* Small dogs originated in the Middle East 12,000 years ago, according to a new study.
* These dogs are related to the Middle Eastern gray wolf, which shares a particular version of the size gene.
* Reduction in body size is a common feature of domestication and has been observed in other animals.

Small dogs the world over can all trace their ancestry back to the Middle East, where the first diminutive canines emerged more than 12,000 years ago.

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The Tell Tail Clue To A Happy Dog... They Wag It To The Left

Photo: Welcome sign: A wag to the left is friendlier than one to the right

From The Daily Mail:

Everyone knows that if a dog's ears are up and its tail is wagging vigorously, it is definitely pleased to see you.

Now, scientists using a robot have found that the way dogs use their tails is more subtle than we thought and that dogs that wag them to the left may be more friendly.

The animal psychologists discovered that when real dogs approached a life-sized black Labrador with a mechanical tail, they were less wary of it when it was wagging its tail on the left side of its body.

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Breeding Has Made Dogs' Heads Incredibly Diverse

A cocker spaniel mix puppy. Credit: stock.xchng

From Live Science:

To get a sense of the not-so-subtle ways humans have influenced the course evolution, one wouldn't need to look further than Fido.

A new study reveals that the variety of skull shapes among domestic dogs has become just as diverse as the variety between other mammal species, such as bears, weasels, and seals. In fact some dog breeds’ heads vary in shape by more than the variation between cats and walruses.

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For Dogs, It's 'Survival Of The Cutest'

From Discovery News:

Look at how cute and adorable Claudia and Johnny are! Don't they just melt your heart?

New research shows that how we value the "cuteness" of our pet dogs could influence a breed's survival, variation and overall evolutionary pattern.

The University of Manchester released a new study today that compared the skull shapes of domestic dogs with those of different species across the order Carnivora, to which dogs, cats, bears, weasels, seals and walruses belong.

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The Science Of Sniffer Dogs

From Cosmic Log/MSNBC:

Rescuers from all around the world are converging on Haiti in the wake of this week's earthquake - and not all of them are human. Finding survivors amid the rubble of Port-au-Prince is a job tailor-made for dogs and devices.

The search-and-rescue operation "appears to be unprecedented in scale," Discovery.com reports.

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Dogs Better Than Human Walking Companions

From Future Pundit:

No surprise here. Oh, and cats aren't getting you any exercise.

Is it better to walk a human or to walk a dog?

New research from the University of Missouri has found that people who walk dogs are more consistent about regular exercise and show more improvement in fitness than people who walk with a human companion. In a 12-week study of 54 older adults at an assisted living home, 35 people were assigned to a walking program for five days a week, while the remaining 19 served as a control group. Among the walkers, 23 selected a friend or spouse to serve as a regular walking partner along a trail laid out near the home. Another 12 participants took a bus daily to a local animal shelter where they were assigned a dog to walk.

Click thru to read the details. Suffice to say, dogs rule.

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Dogs Are Better Than Cats – At Least Scientifically Speaking

Dogs won six categories compared with five for cats Photo: Martin Pope

From The Telegraph:

A dog really is man's best friend claims a new scientific study that shows that canines make better pets than their arch rivals cats.

Researchers concluded that when it comes to a number of criteria including intelligence, bonding and obedience, dogs narrowly beat their feline adversaries.

Out of 11 categories selected by the magazine New Scientist, dogs won six compared with five for cats.

Despite cats deemed overall to have a more powerful brains, dogs showed greater ability to understand commands, problem solve and were generally more helpful, it was said.

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