Claudia Kawczynska is The Bark's co-founder and Editor-in-Chief.
June 22 2016
Golden Retriever Rocky 3 was hit by a car and sustained a major spinal cord injury, that virtually paralyzed him. Watch how Karen Atlas, MPT, CCRT and her team at HydroPaws in Santa Barbara performed amazing rehabilitation physical therapy on him. Karen also serves as the president of the California Association of Animal Physical Therapists. This is a coalition of animal physical rehabilitation professionals (licensed physical therapists with advanced training/certification in animal rehabilitation) who seek to play a leading role in defining appropriate legislative/regulatory language in California; similar to those states (such as Colorado, Nevada, and Nebraska) who have already successfully regulated this area of animal care. Even now, the California Veterinary Medical Board wants to limit/restrict our access to qualified non-vet rehab therapists and this video is proof of why this coalition disagrees. This inspirational video of Rocky 3 certainly does demonstrate the important work that is performed by these highly skilled professionals.
June 17 2016
Bark’s long-time contributing editor Twig Mowatt has been covering humane efforts both here and abroad for nearly two decades. She recently had the chance to visit Bhutan, the country with the enviable “Gross National Happiness Index” to cover a story for us about how the Bhutanese are tackling their stray dog population. Twig just got back from this amazing trip and was approached by PRI’s “The World” (Public Radio International) for an interview with Marco Werman that aired yesterday. We are so proud of her (this was her first radio interview) and thrilled that the Humane Society International received this invaluable promotion. We hope that other countries are inspired by Bhutan’s innovative national effort in spaying and neutering. Twig’s indepth article on this program and her trip will be featured in our next (Fall) issue. And, yes, there is a dog magazine called The Bark. And we are proud to have Twig as our International Humane Editor!
Click for a full transcript of the PRI interview and photographs.
Dog's Life: Travel
Putting Out the Welcome Mat
June 8 2016
Farsighted people at many state tourism offices are turning dogward to promote the benefits of travel to their states. From Virginia to Nebraska, Arkansas to Oregon, states across the nation are catching on that dog lovers—who are inclined to include their dogs in their vacation plans—are a perfect target audience.
Better yet, it gives them good opportunities to promote their states’ own homegrown, dog-friendly businesses, from pet shops/boutiques and lodging, dining, hiking and recreational events to more out-of-the ordinary attractions —for example, Michigan’s ferry boat, the Isle Royal Queen IV, and Oregon’s dog-welcoming breweries.
Arkansas maps out its own pooch-friendly “Barkansas” itinerary; on the list is a stop at Crater of Diamonds State Park, where your dog can help you dig for gemstones. They also recently hosted a photo contest show-
Traveling northward, Wisconsin’s video campaign extols its canine chops with a winning slogan: “Dogs are welcome in Wisconsin, and they can bring their people, too.” The state of lakes aplenty highlights water features, festivals and fabulous off-leash trail programs like the 160-acre OLA that borders Ice Age National Scenic Trail at Prairie Moraine County Park at Verona. Or, near Madison, Lake Kegonsa State Park has a pier where you can teach your dog to jump into one of the state’s 10,000 lakes.
THE GOOD LIFE
Nebraska has its own dog-friendly marketing program: “Visit Nebraska. Visit Nice.” So we asked Bark reader (and smiling dog entrant) Michelle Hultine to suggest some tips on her home state. She points with pride to Nebraska’s “Rails to Trails” program, notably in the northern part of the state. Also, she tells us, many small towns are in the process of repurposing and reclaiming abandoned rail corridors. In fact, one cuts through her hometown of Hastings and is now a trail for hikers and bikers that many people use to walk their dogs. Hultine also bragged that there are more linear miles of rivers in that state than any other. Who knew? She adds that since many of the rivers aren’t all that deep, dogs will sometimes walk across them. Splashing in shallow, slow-moving water: a perfect activity for a hot summer day. Very nice, indeed, and very welcoming.
GEORGIA’S WALKING CHALLENGE
Georgia State Parks & Historic Sites is hoping to encourage more people to hit the trails with their pups by creating Tails on Trails. The dog-walking club, which launches this weekend, features a seven-trail hiking challenge. Learn more about the program.
May 19 2016
The Golden Gate National Recreation Area (GGNRA) is proposing a roughly 90 percent reduction in its off-leash space. And we have only until May 25 to comment on this draconian proposal.
The GGNRA oversees more than 80,000 acres of the Northern California coastline, and of this, dogs have only been allowed on approximately 1 percent. Their proposed new Dog Management Plan will reduce that smidgen by 90 percent, which is a significant hit.
Although a unit of the Dept. of the Interior’s National Park Service, GGNRA is in a decidedly different category than the more traditional parks such as Yellowstone or Yosemite. From its inception in 1972, it has been charged with balancing habitat protection with recreational activities that predated its creation: “To provide for the maintenance of needed recreational open space.” Foremost among those activities was (and is) off-leash dog-walking. One of the groundbreaking 1970s “parks for the people,” GGNRA serves a densely populated metropolitan area and is an invaluable resource for locals and visitors alike, providing access to outdoor recreation for millions of people each year.
For many of us, especially women and seniors, off-leash recreation with our dogs is our only form of exercise. We don’t kayak, bike, run or cross-train. What we do—from time immemorial, it seems—is simply walk with our unfettered dogs, enjoying the regenerative benefits of spending time outside. We also acknowledge that a balance needs to be met with respect to other park users and the natural resources that we all value.
But we believe that an acceptable balance was not adequately taken into consideration during GGNRA’s rule-making deliberations. Rather, opinions and desires expressed by special-interest groups such as the Sierra Club and Audubon Society and prominent donors held greater sway than those of local elected officials and the many thousands of off-leash advocates (and other park users) they represent. And because this is thought to be a precedent setting judgment, it can (and will) be used against off-leash activity is other areas throughout the country.
During two recent public meetings held by the GGNRA and chaired by park superintendent, Christine Lernertz, in response to questions about how they regard the opposition from the vast majority of residents, local elected officials and humane organizations, Lernertz brushed those questions off and referred to GGNRA's “national” status, meaning they are a park for the whole nation. (She did though reference their concern about tourists from other countries, and what would they feel about seeing dogs on beaches.) So if indeed the GGNRA is a national resource for all of us, they need to hear from all of us from both inside and outside the area.
Your comments are needed now and due before May 25:
What do I say in my comment?
· See talking points and sample comments here, or here or see the one below.
· Consider making the point, in your own words. If you are outside the Bay Area, tell them where you are located and how important the issue of off leash recreation is to you, especially in public land owned by the federal government. Your voice matters too.
How do I submit my comment?
General Sample Comment Letter
“I am writing to voice my opposition to the highly restrictive proposed rule for dog management at the Golden Gate National Recreation Area (GGNRA). It was established by Congress as a national recreation are—not a national park. Banning dog walking recreation from nearly all of the GGNRA is a violation of public trust and the unit’s enabling legislation.
These significant restrictions to dog walking are being proposed without any evidence that dog walking is causing actual impacts to GGNRA’s natural resources or visitor experience.
I am especially opposed to the provision that would give GGNRA’s superintendent a blank check to ban dogs without any sort of public input process and before any impacts from dogs occur.
I strongly urge the National Park Service to rethink its proposed rule for dog walking at GGNRA. Please take into account the input and concerns of the thousands of people in this country that are opposing this plan.”
May 13 2016
Mark Vette, an animal behaviorist from New Zealand, who made a splash a few years back by training dogs to drive cars, has taken his skills to a new height and has now successfully trained dogs to not just co-pilot, but to actually pilot planes. As with his driving “dare” he has taken on this newest challenge to promote the talents and adoptability of shelter dogs, certainly a noble cause. You have to watch this video to see how successful, he and his team of trainers, were. From what this well-edited clip shows, the dogs too seem to like getting behind the throttle and definitely soared to new heights.
The dogs went through a four-month training period, and as the final episode of Dogs Might Fly, that aired in UK on Sky-1 television, you can see just how well they performed and maneuvered the plane to even make perfect figure eights up in the air.
The three dogs were first trained on flight simulators and harnesses kept them sitting upright so they could “paw” unto the plane controls. Vette said that he was very careful that the three would-be pilot dogs were happy with what they were doing and that their welfare was his highest priority. The dogs were trained to respond to color lights. As Vette commented that, “Most importantly, this exercise has proven that shelter dogs are not secondhand goods.” He added that “They are smart and deserve a chance at life.”
He himself adopted one of the pilot dogs as the show ended (the one shown here at the controls), and I can’t imagine that the other two weren't also snatched up. Diane D., a reader drew this to our attention today, and thankful that she did.
May 4 2016
Researchers at Cambridge University looked at Labrador Retrievers (the most popular breed in the U.S. and the UK) to assess why that breed is more prone to obesity than other breeds. Their findings, recently published in the journal Cell Metabolism, point to a possible genetic reason behind this.
“About a quarter of pet Labradors carry this gene [difference],” lead researcher Dr. Eleanor Raffan noted. “Although obesity is the consequence of eating more than you need and more than you burn off in exercise, actually there’s some real hard-wired biology behind our drive to eat,” she added. Labs have the greatest documented obesity prevalence.
More than 300 Labradors, from pets to assistance dogs, were screened for known obesity genes in the study. The international team found that a change in a gene known as POMC was strongly linked with weight, obesity and appetite in both Labradors and Flat-Coated Retrievers.
Other breeds—from the Shih Tzu to the Great Dane—were also screened, but this particular genetic difference was not found.
Dr. Giles Yeo, was one of the human geneticists from the University of Cambridge, who worked on the study. “What we have found is that some Labradors get fat because they have a deletion in a gene within their brain,” he said.
“And this particular gene plays a role in sensing how much fat they have in their body—and so some Labradors don’t know how much fat they have and so keep eating to try to get fatter.”
Researchers also found that the mutation is significantly more common in Labradors selected to become assistance dog breeding stock than those selected to be companions.
It is certainly intriguing why assistance Labs are more prone to be carrying this gene deletion, but as they hypothesized, dogs carrying the POMC deletion may be more likely to be selected as for work as assistance dogs because trainability and temperament are the main “drivers for selection of these dogs, and positive reinforcement with food reward is the mainstay of puppy training.”
Wellness: Health Care
April 11 2016
Though in many ways, our dogs communicate with us all the time, when it comes to their pain, we have to figure it out on our own. Here to help with that daunting task is Michael Petty, DVM, author of the newly released Dr. Petty’s Pain Relief for Dogs in a Q&A with Bark editor Claudia Kawczynska.
What are the most common ways dog guardians can recognize that their dogs are in pain, beyond obvious signs like limping or decreased appetite?
The answer to this is complicated and I probably can’t do it justice here. However, if people start to see their dog as lazy, not socially interacting, reluctant to do the things they liked in the past—really, any behavioral change—then pain should be on the list of possible problems. Dogs rarely quit doing the things they like to do because they’re old, they quit doing them because there’s something wrong. And that usually means disease, commonly something painful like degenerative joint disease.
You note in your book that “there is no one-size-fits-all approach to pain treatment.” You also mention something called a “pain examination.” What does that entail, and is it something that’s perhaps best handled by a specialist?
A pain exam can take many forms. My approach depends in part on the history given to me by the dog’s caregiver, the breed, prior medical conditions and watching the dog walk into the exam room, just to name a few.
Every pain exam should consist of a complete physical exam; an observation of the dog’s gait when possible; a basic neurological exam (many neurological issues can mimic pain); and a hands-on palpation of the dog’s joints, muscles and bones. Based on the fi ndings, X-rays are often indicated, as well as blood work and urinalysis in anticipation of possible pharmaceutical interventions and procedures requiring sedation or anesthesia.
No one specialty “owns” pain. Anesthesiologists are well trained to handle acute pain, but not chronic. Neurologists are trained in matters like intervertebral disc disease, but not osteoarthritis. The list goes on. My fi rst choice would be to seek out someone with a pain certifi cation—a Certified Veterinary Pain Practitioner—from the International Veterinary Academy of Pain Management (ivapm.org). This certification takes several years to earn, and program graduates are experts in the fi eld of pain management.
Do most vets understand the importance of neuropathic pain (essentially, a misfire between the sensory/nervous system and a region of the body)? And how is it best diagnosed?
Most of the veterinarians I talk to, outside of those belonging to pain-aware organizations such as the IVAPM, do not have a firm understanding of neuropathic pain. In human medicine, diagnosing neuropathic pain is difficult; it requires both a verbal description of what the pain feels like and verbal responses to certain tests. Without these tools, most of the time, our diagnosis is, at best, an educated guess. However, patient response to therapy for neuropathic pain is one indication that a veterinarian is on the right track.
You note that aspirin is dangerous for dogs. Are there any over-the-counter medications that can be given to a dog who has sustained an injury, to ease pain and infl ammation before taking the dog to a vet?
No. No OTC medications are licensed for use in dogs. Ice and stabilizing injured limbs are about the best you can do.
You support the importance of omega-3 fatty acids as part of a dog’s diet because they work to help decrease the production of pain-causing prostaglandins. Why is a fish-based source of omega-3 fatty acids preferred, and do foods such as canned salmon and water-packed sardines and tuna contain enough of it? How do we determine the correct amount?
Fish-based sources are best because of bioavailability. Sources like flax seed are okay for people but useless for dogs, as they cannot convert flax to omega-3s. If you are feeding a food that has salmon or sardines as an ingredient, then you don’t have to worry about the amount, as it takes very little of these foods to provide enough omega-3s.
You call out a few botanicals, like ashwagandha, boswellia serrata and turmeric, for their benefits in pain relief and/or in reducing infl ammation. Do you prescribe these in your practice?
Yes. The problem is finding a reliable source of herbs, as they are not monitored by the FDA like pharmaceuticals are. One good option is a product called Dasuquin Advanced, from Nutramax; it has many important pain-modifying ingredients, including several herbs.
The veterinary attitude toward acupuncture seems to have changed a lot. In your experience, which conditions respond best to acupuncture? And how do you know which dogs are good candidates for this treatment? (I had a dog who would shake out the needles!)
Talking about acupuncture is one of my favorite things to do. I cannot imagine practicing without it, especially in my geriatric population, which is more sensitive to the effects of many drugs. I think attitudes have improved—in both veterinarians and dog owners—as more and more research is being published on the benefi ts of acupuncture; also, people hear about someone’s dog being helped by it. In addition, it has the support of the National Institute of Health for the treatment of pain.
For many dogs, the proof of being a good candidate is obvious in their response to treatment. Within one to three treatments, we can usually see an improvement in pain scores and observations. If we don’t, then sometimes the decision is made to stop treatment. I have had a few clients return and say they didn’t realize how much it was helping until it was stopped.
Many people experience what you did with your own dog. Some dogs are needle-phobic and resent even one needle going in. Some dogs are just afraid of being at the veterinary clinic and won’t sit still. I sometimes give these patients a mild sedative to get over this hump. A reduction in anxiety for several treatments often means that they eventually accept acupuncture without continued use of the sedative.
Finally, dewclaws. You make the point that a dog’s dewclaw, the equivalent of a human thumb, plays important functions in both the mechanics of the front foot and in joint stability, and that ligaments and tendons connect it to surrounding tissues. Yet you also observe that some breeders routinely remove it. How can this horrible practice be changed? Do any vet groups take a position on this?
Both the AVMA and the American Animal Hospital Association discourage any surgery done for cosmetic reasons, but they only name ear-cropping and tail-docking. Unfortunately, I don’t think this has had much of an impact, as very few breeders belong to either organization. I cannot speak for every state’s practice act, but most (if not all) specify that surgery must be performed by a veterinarian. Every instance where a breeder chooses to perform surgery crosses that line, and they are breaking the law. I feel that the best way to address this issue is through kennel clubs, such as the AKC. If the AKC were to say, “No dog born after such-and-such date who has had cosmetic surgery, including dewclaw removal, ear-cropping or tail-docking, can be shown in AKC sanctioned shows,” the practice would grind to a halt.
Wellness: Healthy Living
A Seasonal Heads-Up
March 15 2016
Spring officially, well, springs forth in late March, but depending on where you live, it might show up earlier, or later. Either way, if you live with companion animals, it comes with a few cautions. Take note …
In the house. Thinking about dealing with a winter’s worth of dust and debris? Think smart about your cleaning products; many are irritating or even toxic for dogs. Invest in eco-friendly products, or make them yourself. (For a passel of cleaning tips as well as other ways to green up your paw print.)
In the driveway. Most often associated with winter, antifreeze poisonings happen in the spring as well. Whether from shade-tree mechanics, unidentified vehicle leaks or even the bases of portable basketball hoops, ethylene glycol–based antifreeze winds up in driveways and streets, where its sweet taste attracts dogs and cats. Even in tiny amounts, it’s been known to cause sudden kidney failure.
In the yard. Slug and snail baits combine an attractant, usually apple meal or some other sweet-smelling base, with an active chemical compound such as metaldehyde to poison whatever swallows the bait. Increased rodent activity also means increased use of rat poison, which is one of the deadliest things your dog can ingest. Keep all of them out of dogs’ reach.
If you’re planting (or replanting), check out the ASPCA’s list of toxic and non-toxic plants. A safe choice trumps a dangerous one, particularly if your dog likes to graze in your garden. Go to aspca.org and enter toxic plants in the search box.
Then there are fertilizers; even organic or natural varieties can be harmful. Blood and bone meal can cause vomiting, diarrhea and pancreatic inflammation. Grass and flower fertilizers can also contain toxic chemicals that may be deadly if ingested.
Out and about. If your dog spent a good chunk of the winter crashed on the couch or eating a few too many sweet potato chews, it’s a good idea to bound gradually into a spring exercise regime. Monitor your pet and start slow. (This is also applies to the human member of the team.)
If your outings take you to your local dog park or over hill and dale, keep an eye out for foxtails—wild grass awns that begin to sprout in abundance in the spring. They’re more obvious later on in the year when they dry out, but they’re also a problem at the green stage. Get Dr. Shea Cox’s take on the problem.
Spring Tips and Green Ideas
March 15 2016
Spring and spring cleaning days are upon us, plus March 20th also marks the start of National Poison Prevention Week. An informative notice from Dr. Denise Petryk, on-staff veterinarian at Trupanion (pet insurance), provides insights into the most common pet poisons and other tips to help protect dogs and keep them out of harm’s way:
· Household cleaning products: Soaps, bleach, detergents, specialized cleaners and even sponges can harm a pet by irritating the skin or eyes, as well as damaging and blocking the gastrointestinal system. See better alternatives to these cleaning products.
· Plants: Tulips, Daffodils, Foxglove and Azaleas are all plants that can cause symptoms such as vomiting, drooling and even kidney damage when ingested by pets. Lilies are especially toxic to cats—and popular around Easter time—and can cause kidney problems, while the Sago Palm plant causes health problems such as vomiting, diarrhea and liver failure in dogs.
· Fertilizers: The nitrogen, phosphorus, potassium, iron, zinc and herbicides that supplement plant growth can cause severe symptoms in pets, such as difficulty breathing, vomiting, diarrhea and intestinal blockage. Be very careful about fertilizing lawn areas where many dogs like to spend time.
· Yard tools: Rakes, shrub sheers and even shovels can be deadly for curious pets if they’re not stored properly.
· Pest control substances: Rodenticides and other poisons such as slug bait are toxic to all animals, so owners should take special care to keep their pet away.
For more green ideas and safety tips see our dog-friendly prepping for spring checklist.
Culture: Science & History
How Humans and Their Dogs Drove Neanderthals to Extinction
March 14 2016
Pat Shipman, PhD, is a retired adjunct professor of anthropology at Penn State and an internationally recognized expert in taphonomy, the study of how living animals are transformed into skeletons, and then fossils. Her scientific training and boundless curiosity lead her to take on the intriguing question of just why Homo neaderthalensis, one of the most successful apex species of hunters who had thrived for millennium in Eurasia, would almost suddenly, anthropologically speaking, become extinct. Her hypothesis: The Invaders: How Humans and Their Dogs Drove Neanderthals to Extinction (The Belknap Press) points to the abilities of both certain wolves and our ancestors to pair up and this gave them the competitive edge in the battle of survival. It is certainly true that this wasn’t done intentionally, but such an evolutionary breakthrough resulted in an alliance that had devastating effects on not just the Neanderthals but on a long species list including the huge woolly mammoth, saber-toothed tigers and Cave bears. Could it be possible “man’s best friend” have been the Neanderthals’ worst nightmare ? Shipman’s thesis starts with Homo sapiens, who in expanding north out of Africa were not only as an invasive species, but the most invasive in history, wreaking ecologically enormous changes throughout continents. The evidence that she relies on, by a meticulous review of the most current archeological research and genomic and genetic studies, can perhaps most readily be seen in the mammoth remains megasites, where the number of kills increases almost exponentially after the first evidence of the wolf-dog–human alliance was discovered. For ten thousand years before the domestication of the wolf-dog, evidence of early humans hunting mega-fauna like mammoth is scant, but with the addition of the superior hunting and tracking talents that wolf-dogs contributed to our projectile throwing ancestors lead not only to more successful kills of large prey but insured the success of our two predatory species. As for the Neanderthal, it wasn’t just simply that humans bested them as hunters but climate change was also a key contributing factor: but the combo of the alliance of the apex predators with the ice age ensured their extinction, so goes evolution. As Shipman notes about the Jagger Principle, “… the immortal words of Mick Jagger (yes that one) and Keith Richards are the best statement I know of to describe evolution. Things don’t stay the same; you can’t always get what you want; but with a little flexibility, you might get what you need to survive.” This is truly a fascinating and thought-provoking book, and Shipman presents a compelling argument for how canines and humans proved their flexibility and how this could have been the main reason that we survived and the Neanderthals didn’t. But drawing upon the wisdom of another ’60s duo, we also got by with a little help from our [first] friends. See the following interview with Dr. Shipman to learn more.
Bark: How long did it take humans, once they migrated out of Africa, to team up with wolves, a species that was unknown in Africa?
Pat Shipman: There were wolves in North Africa, but my guess is that humans did not team up with them but rather, based on genetic information, with European wolves. The earliest humans in Europe date to perhaps 42,000 years ago. The earliest wolf-dogs we know at present show up about 34,000 years ago (or about 37,000, if the raw radiocarbon date is calibrated for irregularity in the deterioration of C-14). Thus, it may have taken 6,000 years, or less—I seriously doubt we have found the first wolf anyone ever attempted to domesticate.
BK: What environmental reasons led to this amazing partnership?
PS: There were many different predators in Europe when modern humans arrived; competition for prey was considerable, and even worse once humans came on the scene. The idea of domesticating any animal was completely unknown, but somehow— probably by accident—some wolves began cooperating with some humans because the alliance benefited both.
They caught more prey, faster, with less risk to canine or human, which meant more energy for reproduction. Wolves had a set of skills for hunting in packs: speed, keen ears, a very keen sense of smell, sharp teeth and claws. Early humans were much slower, had lousy senses of smell and hearing, and blunt teeth, but they had distance weapons that could kill an animal while avoiding injury from close contact. By teaming up with special wolves—wolfdogs they could capture a much wider array of animals with much less risk and less expenditure of energy. They were nearly unstoppable.
BK: You write that proto-dogs were like “living tools” to humans. Was this a mutually beneficial arrangement?
PS: Absolutely. You cannot force any animal to cooperate if it does not want to. You cannot force an animal not to be hostile to humans or to cooperate with humans if there is no benefit to the animal.
BK: Wolves are highly territorial, and may kill other wolves who come into their area. Since this was well before human settlements, humans and wolf-dogs would have traveled great distances, through other species’ (i.e., wolves’) territory. Could the advantage to the wolfdogs come from the protection offered by their human partners?
PS: Both wolf-dogs and humans were more efficient hunters through cooperation— the wolf-dogs by having hunters kill the prey from a distance after they had found it, isolated it and stressed it through charging and holding it at bay.
For wolf-dogs and humans to travel together, they must have cooperated to drive off or kill the wolf packs through whose territories they passed. Indeed, there is a marked rise in the number of wolf bones in human sites after wolf-dogs appear. I think wolves were deliberately targeted by humans in order to protect the wolf-dogs, and to protect the remains of their kills from scavengers.
BK: Why do you think that Neanderthals did not also have wolf-dogs?
PS: One quite real possibility is that modern humans had adaptations that fostered better communication with wolf-dogs and possibly (we don’t know) Neanderthals did not. For example, humans are the only primates with whites to their eyes, which makes communicating the “direction of gaze”— where you are looking—very obvious. This is a huge advantage in silent cooperative hunting. We do not yet know if Neanderthals had this adaptation or not. Assuming that they saw humans working with wolf-dogs, why Neanderthals did not steal them or make their own is unclear. Humans undoubtedly prized the canines and may have gone to great lengths to prevent them from being stolen. Maybe Neanderthals did not have the empathy and ability to understand wolf-dogs that is so necessary to a good working relationship. Maybe Neanderthals tried and just couldn’t figure out how to handle them.
BK: What do you think inspired humans to see that teaming up with wolves might give them a competitive edge? Did it have to do with their diet perhaps?
PS: I don’t think humans set out to domesticate wolves into dogs; I think it was an accident based on taking in orphaned puppies and raising them. Before working with wolf-dogs, humans were rarely able to kill mammoths or other very large game; afterward, there are sites with dozens of mammoth kills. I suspect that killing mammoths efficiently and regularly required the help of wolf-dogs, so mammoths weren’t really a preferred human food until humans had wolfdogs to help.
BK: It was interesting that the primary protein source in the bones of both wolfdogs and humans can be detected. What does that tell us?
PS: First, this sort of study tells us that, at the same site, wolf-dogs and wolves ate different prey animals predominantly. (That is a very surprising finding if my colleagues and I are mistaken and the wolf-dogs are really wolves, that would make them a very odd and distinctive group.) Second, this type of study shows us that humans may have provisioned wolf-dogs, rather than letting them simply eat whatever was left over.
BK: You say that wolf-dogs were a first, but unsuccessful, attempt at domestication; and that domestication happened several times in different areas. Are you concerned that their mtDNA (mitochondrial DNA) evidence hasn’t been found in modern-day canids?
PS: Not at all. There is as much mtDNA evidence that these identified wolf-dogs were wolves as there is that they were dogs: none. The mtDNA we have so far from wolf-dogs is unique, previously unknown. What that means is uncertain.
This particular genetic material is passed from mother to daughter to granddaughter and so on; the father’s mtDNA is not. This means that if you have a small population with an unusual mtDNA, the probability that it will go extinct in 1,000 years—much less 35,000—is very, very, very high.
It could be as simple as a few females who don’t reproduce successfully or have only males due to random chance. Also, athough we have several thousand mtDNA lineages from living animals, there are millions of dogs and wolves whose mtDNA is unknown. Maybe the sample sizes of living animals are too small and the wolf-dog mtDNA is still out there somewhere. Maybe it is simply extinct.
The standard calculation is that 99 percent of all mtDNA lineages go extinct, so we can’t conclude too much from that. I am not at all worried that the mtDNA information from wolfdogs has not yet been matched in any other group. Also, the entire wolf-dog group may well have gone extinct, with a still-later domestication of wolves into dogs. We just don’t know.
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