Good Dog: Behavior & Training
Surprises among the old and young
The other day at a park, I saw what I thought was a Pomeranian puppy. At just over three pounds, she was pretty small and had that fluffy look of those who are new to the planet. Additionally, she was leaping around with more enthusiasm than knowledge of where her body parts were. I didn’t just THINK she was a puppy. I was sure of it. Yet I was wrong—it turns out she was four years old.
Even though I know that teacup and tiny toy Pomeranians are full grown around the size of this dog, she still seemed like a puppy to me. It was not just her diminutive size that was misleading. Her coat and her behavior fooled me, too. She moved like a young dog and her fluffy coat was the result of having been shaved in the past. She was not the first dog whose age has been a surprise to me.
Several times, I’ve seen Golden Retrievers with full spectacles of white and thought they were probably at least six or seven only to find out they are actually just about to turn four or even barely three. Sometimes dogs who are naturally very calm seem older to me than they are, but some dogs, especially those who have been bred for high energy and high drive, seem young even when they are already a decade old.
I enjoy the variation in dogs, and that applies to their behavior, their temperaments, their athletic abilities, and even how they age. Some dogs behave as though they are puppies until the very end of their lives at which point they suddenly enter a brief geriatric phase. Other dogs lose the puppy sillies in adolescence and proceed to act like wise, respected elders for many years.
Most of the time, I really do correctly guess dogs’ ages within a reasonable margin of error. When I’m wrong, it interests me because it is usually a combination of appearance and behavior that throws me off.
If you’ve been wrong about a dog’s age, what was it about the dog that deceived you?
Web alternatives to kennels
If cage-free, off-leash accommodations were the last big trend to sweep the boarding business, than sleepovers with regular folk are the new sweet spot between home and kennel. Today, several websites connect dog owners seeking a more hands-on, affordable boarding experience for their pups with dog-loving hosts eager to open their homes to canine visitors but with varying degrees of pet care experience.
Launched in Phoenix in 2004, the same year as Facebook, SleepoverRover.com helped pioneer the current web-based wave of hosting dogs as guests in private homes. With experience in pet retail and grooming and a desire to find a low stress alternative to kennels, co-founder Maggie Brown set about recruiting retirees and stay-at-home parents to take care of dogs in their homes.
Unlike newer sites, Sleepover Rover representatives evaluate each host and inspect each home, in some cases, providing dog-proofing and behavior advice. Sleepover Rover actively facilitates each match, handles payment (splitting the fee with hosts), and follows up on each home stay. Sleepover hosts are located in Phoenix, Tucson, Las Vegas, Denver, and in Southern California from San Diego to Santa Barbara.
In 2011, two sites—DogVacay.com and Rover.com—launched more open-market versions of the same concept. Like AirBnB, these sites allow dog owners and dog sitters to post profiles for free. Owners are responsible for selecting a sitter and making arrangements, although they pay through the site, as well as checking references, which include onsite and other social media reviews. The sites take a percentage, from 3 to 15 percent, of fees collected by the dog sitters.
Started by a husband-and-wife team, DogVacay was originally limited to Los Angeles and San Francisco, but now has more than 10,000 qualified hosts (DogVacay interviews hosts and checks references) around the country, concentrated in urban areas also including New York, Miami, Dallas, DC, Chicago and Atlanta. The hosts make an average of $1,000/month.
A well-funded, Seattle-based startup, Rover.com started by putting down roots in the Pacific Northwest but is now actively expanding in 52 cities.
In a recent New York Times blog specifically about DogVacacy the important issue of insurance was examined. While traditional homeowner's policies provide coverage that protects you in the event that your own dog bites someone, typically if a “guest” dog does likewise, this wouldn't be covered. You would need to acquire specialty insurance coverage for pet businesses, similar to groomers, boarding kennels, etc.
The Times article, explains:
"DogVacay's Web site says it includes “complimentary” insurance for hosts and guests with every booking. The free version covers veterinary care for guest dogs and dogs owned by the host, up to $2,000; it doesn't, however, include liability coverage for the host.
Hosts can pay to upgrade to “premium” insurance that does include liability coverage of up to $4 million, said Aaron Hirschhorn. The coverage is offered through Kennel Pro, an affiliate of the insurer Mourer-Foster.
DogVacay's site links to Kennel Pro's site, which says its policies start at $350 a year, which sounds a bit steep for someone hosting a dog only occasionally. But Hirschhorn said DogVacay was able to offer expanded coverage for $48 a year to its hosts through a special arrangement with the carrier. (The more affordable premium isn't cited on the Web site.) The fee is deducted from the first booking, so hosts don't have to pay the premium upfront, he said. He estimated that half of DogVacay's hosts bought the upgraded coverage."
Some local jurisdictions might also have laws about the need to have a business license. In Houston, for example, you might need a kennel license and an inspection.
Even though a few of these services do initial “vetting” of the hosts for you, and urge you to meet the “host” before you finalize your arrangements, some comments on the Times piece express concerns about leaving a dog with someone you only met on the internet. Have you used any of these services? Would you be interested in using them, or even being a host?
Dog's Life: Lifestyle
The importance of planning for outdoor excursions with your pup
Over Memorial Day weekend, my Border Collie Scuttle and I headed up to New Hampshire's White Mountains to camp and hike. For me, there's nothing better than spending time outdoors with my dogs, especially if it's somewhere they can run off leash (after safety, this is the number two reason I train a good recall!). We've blogged about hiking with dogs before, but the White Mountains got me thinking about the importance of preparing for the worst and hoping for the best. I've never hiked in this region before, but the fickle weather and challenging terrain is legendary. I always do trail research before I head to a new area with my dogs, but I knew this trip would require extra preparation. I started with online research, reading about dogs who had hiked the trails near our campsite and getting route recommendations from people who had posted on trail condition web sites (New England Trail Conditions even has a notes section for dog related comments). I quickly learned that the White Mountains are particularly tough on paw pads because of sharp rocks above the treeline. I knew Scuttle had the stamina to complete a summit attempt, but I took a few precautions based on what I'd heard from other hikers. I brought extra first aid supplies (Musher's Secret to protect her paws, dog boots in case of a torn pad, and septic powder for torn nails), plenty of layers (a doggy rain coat and down jacket in case of bad weather), and also made a plan for getting Scuttle down the mountain in an emergency, something I've never thought about before. You might remember Missy, the German Shepherd abandoned with torn pads at the top of a Colorado mountain. Weather conditions can quickly change at high elevations and an injured dog can be difficult to get down. Park rangers are often not allowed or don't have the resources to rescue animals. Inspired by Missy, I brought a backpack large enough to carry Scuttle down the mountain if she were to get injured. We practiced the pack riding before the trip, much to Scuttle's chagrin (if I had more time, I would've properly introduced her to the bag more slowly with shaping and positive reinforcement). In the end, we had a fun weekend and Scuttle completed her first 4,000+ foot mountain (one of New Hampshire's 48 4,000 footers) without any hiccups. Believe it or not, there was even snow at the top of the mountain, proving once again that good preparation is key. When we're hiking, the look of joy on Scuttle's face is priceless, but we have to remember that it's our choice to bring our pups with us on the trail. Scuttle would follow me to Antarctica if she could, so I know it's my responsibility to do research, make educated decisions, and prepare for the worst!
Good Dog: Behavior & Training
Blind dog wins Palm Dog award
This year, a blind poodle has won the Palm Dog award for his performance as Liberace’s dog Baby Boy in the film “Behind the Candelabra.” He did not travel to France to accept his award, which consists of a leather collar that says “PALM DOG” in gold letters. Baby Boy is blind and has cataracts, and his ailing health played a part in the plot of the film. He beat out the Chihuahua who was nominated for playing Paris Hilton’s dog in the film “The Bling Ring.”
Since 2001 the unofficial Palm Dog award has been a part of the Cannes Film festival. It is presented to honor the best canine performance of the festival, and owes its name to a play on words relating to the Palm d’Or, which is the top award at Cannes. Previous winners include Uggie, the Jack Russell Terrier who played Uggie in “The Artist, and Lucy in the film “Wendy and Lucy.”
Dog's Life: Lifestyle
An Austrailian man searches for two months on foot for his lost pup
There are many stories about loyal dogs, but an elderly Australian man searching for his pup reminded me that what makes the human-canine bond so special is the love on both sides of the relationship. Back in March, Brian Railton's Kelpie-Border Collie mix, Benji, ran away from home after being spooked by a storm. Since then Brian, 70 years old and battling Parkinson's disease, walked over 180 miles looking for Benji. Brian hung posters, searched the neighborhood, and made a daily trek from his home to the local shelter to check for the lost pup. After more than two months had passed, Brian's family was just about to give up when they got the call that Benji had been found. The dog had been going to a nearby nursing home looking for food when he was spotted. When Brian and Benji were reunited, they celebrated with ice cream at McDonalds. Brian's journey may sound like a lot, particularly at age 70, but it turns out Benji has been keeping Brian in good health. The pair regularly walks up to eight miles a day to relieve Brian's shaking from Parkinson's Disease. Benji also waits at the bus stop for Brian when he runs errands. Brian and Benji have been together since the pup was eight weeks old and you can tell they've developed a deep bond. Here's to many more years together!
News: Guest Posts
June 28 to 30—streaming live
SPARCS is a unique venture organized by Prescott Breeden and Patti Howard of The Pawsitive Packleader, Seattle Dog Training. From June 28-30, 2013, anyone in the world can see some of the leading canine science researchers in action—either in a conference hall in Redmond, WA, or streaming live to your living room.
SPARCS is short for the Society for the Promotion of Applied Research in Canine Science, which aptly summarizes the goals of the conference: (1) to promote research and education in canine science, and (2) to provide a platform for leading minds in canine science to present, discuss and debate modern behavior science.
Canine Science? Explain
If the phrase “Canine Science” gives you pause, I assure you it does not imply that dogs are meeting in the park to discuss the current issues of the day, such as:
- Owner Responses to Half Eaten Sandwiches: A Review
- Why Does the Cat Run Around at Night?: A Roundtable Discussion
- Where Are They Taking Our Poo?
Canine Science, generally speaking, is research devoted to the biology, ecology, behavior and cognition of dogs, wolves and related canids. It is a catch-all phrase that highlights the surge of research into canine minds and experiences. My article in The Bark, Dog Smart: Exploring the Canine Mind, describes this field in more detail. SPARCS brings together the following leading researchers to discuss their inquiry into the dog for a general audience:
Marc Bekoff is a long-time researcher and writer of more than 500 scientific and popular essays. In a book store? Check out one of his twenty-two books, including Minding Animals and the children’s book Animals at Play: Rules of the Game. He regularly updates a Psychology Today Blog, Animal Emotions: Do animals think and feel?
- Bekoff on dogs and their urine: Observations of scent-marking and discriminating self from others by a domestic dog (Canis familiaris): tales of displaced yellow snow.
- Bekoff on play: Social play and play-soliciting by infant canids.
Ray Coppinger has published over fifty papers on dog research. His favorite publication, however, is the book Fishing Dogs, a humorous and iconoclastic look at dogs, fishermen and professors. His book, Dogs: A Startling New Understanding of Canine Origin, Behavior & Evolution, is a classic text in the field.
- Coppinger on different behavioral sequences between dogs: Degree of behavioral neoteny differentiates canid polymorphs.
- Coppinger on improving assistance dog training programs: Observations on assistance dog training and use.
Michael W. Fox wears many hats. He is a veterinarian with a Ph.D. in medicine, and he also holds a degree in animal behavior (ethology). His career encompasses extensive research into dog behavior and development as well as holistic and integrative veterinary medicine. He encourages veterinary institutions to incorporate animal behavior and welfare science into their curricula.
- I covered Fox’s 1963 paper, Developmental Abnormalities of the Canine Skull in the Dog Spies post, Where Should Dogs Put Their Tongues?
- Fox on dog development during the first month of life: The postnatal development of neocortical neurons in the dog.
Alexandra Horowitz’s current research at the Dog Cognition Lab at Barnard College investigates animal communication and attention, dog olfaction, inter-species play behavior, theory of mind and anthropomorphisms.* She writes regularly for The New York Times, and her best-selling book, Inside of a Dog: What Dogs See, Smell, and Know, is essential.
- Horowitz on attention during dog-dog play: Attention to attention in domestic dog (Canis familiaris) dyadic play.
- Horowitz on the “guilty look” in dogs: Disambiguating the “guilty look”: Salient prompts to a familiar dog behaviour.
Kathryn Lord received her PhD in organismic and evolutionary biology, which of course means she studies wolf pups. Her research focuses on the evolution and development of dog and wolf behavior.
- Lord on sensory development of wolves and dogs: A Comparison of the Sensory Development of Wolves (Canis lupus lupus) and Dogs (Canis lupus familiaris).
- Lord on the meaning of dog barks: Barking and mobbing.
Adam Miklósi leads the Family Dog Project at the Department of Ethology at Eötvös
Loránd University in Budapest, where I had the pleasure of conducting my Masters research (covered on SciAm by Jason Goldman of The Thoughtful Animal). In the last 15 years, the Family Dog Project research group has published over 100 scientific papers and organized the inaugural Canine Science Forum in 2008. His book, Dog Behavior, Evolution and Cognition is required reading in canine ethology.
- Miklósi on the building blocks of meaningful social interactions: On the utilization of social animals as a model for social robotics.
- Miklósi on other species’ use of human communicative gestures: A comparative analysis of animals’ understanding of the human pointing gesture.
Monique Udell has worked with a variety of species such as wild cats, megachiropteran bats, coyotes, foxes, mice, non-human primates and a range of companion animals including dogs, cats, and ferrets. She has a special interest in how the cognition and behavior of domestic dogs and wolves can be altered by lifetime experience.
- Udell on dog sensitivity to human behaviors: What did domestication do to dogs? A new account of dogs’ sensitivity to human actions.
Before Clive Wynne found a way to combine a childhood fascination with dogs with his day job as a psychology professor, he studied the behavior of animals ranging from pigeons to dunnarts (a mouse-sized marsupial) at universities in Britain, Germany, the USA, and Australia. Now head of the Canine Cognition and Behavior Laboratory, he is full of tales of everything from the tame foxes of Siberia to the dogs of the Moscow subway.
- Wynne on anthropomorphism: What are animals? Why anthropomorphism is still not a scientific approach to behavior.
- Wynne on the relationship between companion dogs and children: The other side of the bond: Domestic dogs’ human-like behaviors.
So, What’s This Conference About?
The SPARCS conference investigates dogs from three angles: “Origins in the Wild,” “Social Behavior and Emotions” and finally “Cognition and Development.”
Origins in the wild
“It is widely accepted that dogs are descended from wolves, but that is about the only uncontroversial fact about the origins of dogs…. I have come to a new proposal for the origin of dogs.” Clive Wynne
“In my presentation I shall talk about the emotional lives of nonhuman animals (animals) – beastly passions – and how they very much care about how we treat them.” Marc Bekoff
“The modern wolf and the modern dog diverged into their present forms, sometime, somewhere, and somehow. We should discuss those when, where, and how questions.” Ray Coppinger
Social Behavior and Emotions
“I shall also talk about why play has evolved – what it is “good for” and why it is very important that we come to terms with the details of what animals do when they play.” Marc Bekoff
“So the basic question is: What makes a dog skillful for living in the anthropogenic [human] environment, and whether we can claim that there is a parallel between some of the behavioral skills of dogs and those of humans?” Ádám Miklósi
“Dogs are socially and emotionally promiscuous and, given the right conditions, can form attachments to members of many other species.” Clive Wynne
Cognition and Development
“How the dog’s brain and behavior develop is integral to our understanding of critical and sensitive periods in helping facilitate a strong social bond and in enhance learning/trainability, emotional stability and stress & disease resistance.” Michael W. Fox
“[W]e must be careful not to forget the true diversity of the domestic dog population, or assume that the sum is more representative than its parts. Indeed, it is at the fringes of the species where we often discover examples of amazing cognitive feats, or hidden canine capacities unveiled by unique environmental or experiential contexts.” Monique Udell
“First, I aim to highlight and examine the attributions we unthinkingly make to dogs. Second, I use findings about the biology and cognition of dogs to create a better picture of the dog’s experience: the umwelt, or point of view.” Alexandra Horowitz
What About My Living Room?
Because SPARCS aims to make continuing education accessible, the conference will be broadcast live and free of charge: “As long as you have a computer, a tablet, or a smartphone, everyone will be able to watch our broadcast from anywhere in the world.”**
SPARCS plans to be a yearly conference, so keep it on your radar!
Ticket, Live Stream and Schedule
on Social Media
SPARCS on Facebook
SPARCS on Twitter
All photos courtesy of SPARCS
** SPARCS adds, “Donations are absolutely optional however graciously appreciated. If you watched our event online and enjoyed it, consider donating to SPARCS.”
Dog Smart: Exploring the Canine Mind at The Bark
Talking dogs: Welcome to the 3rd Canine Science Forum at Dog Spies
Inside the 3rd Canine Science Forum at Dog Spies
This story was originally published by Scientific American. Reprinted with permission.
About the Author: Julie Hecht is a canine behavioral researcher and science writer in New York City. She wriites a behavior column for The Bark. She would really like to meet your dog. Follow on Twitter @DogSpies.
Wellness: Health Care
What can be done?
As our pets age, you may begin to notice subtle changes in their movement, such as having a little difficulty going up or down the stairs, or seemingly slow to rise from a comfortable laying position. These can be early signs of arthritis, and early intervention is critical to slowing progression of the disease. I am currently experiencing this “slow down” with my 11 year old Dobie, and I thought it would be good to share some suggestions that you, too, can consider if you have a pet that is living with some degree of arthritis.
Like any lifestyle change, one of the most important things to do first is to ensure that there are no other causes for the changes you are seeing in your pet. An intermittent and subtle slow down can be caused by many things, such as a low thyroid level or even a slowly bleeding tumor on the spleen. X-rays, a urine sample and blood work are important to ensure the overall health of your pet before starting any treatment plan.
Today, there are a number of effective pain medications that are available to our pets, and a multi-modal approach to pain management is the best way to go. By using pain medications that address various pain pathways, you get more complete and synergistic pain management while actually using lower doses of medications. A cornerstone of arthritis management is a non-steroidal anti inflammatory, or NSAID. This provides excellent pain management in the early stages of arthritis, and then as the disease progresses, additional “layers” of pain management can be “added on.” These medications include such options as gabapentin, tramadol, and amantadine, with each one working to enhance the other.
Adequan is another medication that has been used in pets with degenerative joint disease or traumatic events such as a torn cruciate ligament. It works to help slow down the rate of decay of cartilage as well as stimulate new collagen and hyaluronic acid, a lubricant in joints. This is an injectable product that can be taught to be given at home underneath the skin and is initially given twice weekly for three to four weeks and then, once monthly. By the fifth or sixth injection, most pet parents usually see a more comfortable and agile pet.
Supplements such as glucosamine, chondroitin and omega-3 fish oils are good additions to managing arthritis changes. These supplements provide your pet's joints with building materials to help rebuild their cartilage and decrease the inflammation in the joints. Supplements are not an overnight fix, and they generally take at least six weeks before improvements can be seen. Products can be purchased over-the-counter and do not need to be labeled specifically for pets. However, not all nutrapharmaceutical products are FDA regulated, and there is quite a bit of discussion with regards to bioavailability between various brands; this is a case where cheaper is not always better and I would recommend purchasing only high quality and trusted brands. Your veterinarian can make recommendations for you. The standard dose for glucosamine/chondroitin is approximately 10 mg per pound of body weight once a day, for which you can round up or down to make tablet division or multiplying easiest. For example, a 20-pound dog could take half of a 500 mg tablet daily (250 mg), even though its “recommended” dose is 200 mg. Also, when you are considering fish oil, you want to be sure to base it on the omega-3 concentration of EPA. The dose is 20 mg EPA for every pound of body weight once daily, and for example, our 20-pound dog would need 400 mg EPA daily.
Another area of extreme importance is your pet’s body weight. I have to admit, I am a little guilty of letting this area slip and my boy and I recently went through a five-pound weight reduction program (I couldn’t let him “suffer” alone). How can you tell if your pet is a little too chubby? You should be able to easily feel your pet's ribs and backbone beneath the skin; if you cannot, then your pet may be overweight. Excessive weight is an added burden for already compromised joints, and you may be amazed how much better your dog will feel simply by shedding a few pounds. I can already see a difference in the way Bauer prances around.
Continued activity is also important—the old adage, “if you don’t use it, you lose it,” holds true for our pets, too. Working to keep up your pet’s muscle mass through activity can help provide stability and flexibility to joints. Low-impact exercise is best, such as long walks and swimming, and both are highly encouraged.
There are also newer concepts of arthritis management. One such treatment is known as Stem Cell Therapy. This is a procedure in which adult stem cells are injected into the arthritic joints, or into damaged ligaments and tendons, to aid in healing and repair. While continued studies are still needed, there are many reports of pets responding well and this therapy holds promise. Joint replacement is a surgical therapy and has been proven to be very successful. As an example, 95% of canine patients with hip replacement can return to normal function. There has also been the development of dedicated rehabilitation centers for pets, which are becoming more widely available as the demand for options grows. Trained professionals can offer additional treatments such as hydrotherapy, acupuncture, chiropractic, massage, physical therapy, cold laser therapy, and pulsed signal therapy. Complementary treatments can offer your pet a complete approach to management of its arthritis, and many of these singular modalities, such as acupuncture, are often offered by veterinarians in general practice. These newer approaches to arthritis management are areas that I can discuss in greater detail in another blog, if there is any interest. Let me know!
Good Dog: Behavior & Training
Rescue group is currently fostering them
The three women who were held for a decade in Cleveland lived with three dogs—two terrier-poodle crosses and a chihuahua—in addition to the alleged kidnapper. Following the escape of the three victims, the dogs were taken from the man who was arrested.
So far, there is no indication that the dogs were mistreated. After their guardian was arrested, they were groomed and microchipped. They are now being fostered by Dogs Unlimited Rescue. They will stay in their foster homes until the women who spent such a long time in the same house with them decide if they want to adopt the dogs.
The chief animal control officer in Cleveland has said that the women may have bonded with the dogs. Because of that, if any of them want to adopt one or more of them, he wants them to have the opportunity to do so. If the dogs were a source of comfort to the women, it is good to know that the option of adoption is there.
Good Dog: Behavior & Training
The activity suits him
Carmen the bulldog is obsessed with his skateboard. According to his guardian, they can’t go out without the skateboard because the dog doesn’t want to leave the house unless he knows that his favorite toy is coming, too. He recently appeared on television showing his skills.
It’s fun to watch Carmen skateboard because it’s obvious that he is having fun, but that’s only part of what made me happy when I saw this video. Another factor is that it is a reminder that different body types lend themselves to different activities and that whatever a dog is good at, enjoys and can safely do is probably a great activity for that dog.
We’re all used to seeing quick dogs participating in agility and spry dogs making spectacular catches of discs thrown unbelievably far away. We know that certain types of dogs swim well or run fast, but seeing Carmen on the skateboard reminds me that dogs with a lower center of gravity excel at certain physical endeavors, too. I’m sure there are tall, leggy dogs who also skateboard with success, but it’s especially easy to see why a dog built like Carmen loves his skateboard.
What activities does your dog love to do and do they match what you’d expect based on build?
Dog's Life: Lifestyle
The seven to one ratio is a thing of the past
For the longest time, it was thought that seven human years was roughly equivalent to one dog year. The ratio becomes problematic when you think about pups that live to 18 years of age or older, since no human is known to have lived beyond 122.
Dog people know that, just as there is great variation between breeds, there is a wide spectrum of typical life expectancy. Body size is generally correlated with life span in mammals (so, for example, a larger mammal, like an elephant, will have a longer life expectancy than a smaller mammal, such as a mouse). But what's interesting is that the opposite holds true for dogs--even though small dogs reach maturity faster than big dogs.
Basically this means small dogs age more quickly than big dogs in the first couple of years, but slower once they hit adulthood. So at two human years, a small dog is older than a big dog, but younger at five years.
According to Kate Creevy, an assistant professor of internal medicine at the University of Georgia, there aren't any other species that have the same degree of size diversity within a single species as dogs do. This could be the key to the ageing phenomenon. Kate believes that if we genetically engineered a cow weighing 20 pounds at adulthood and another weighing 2,000 pounds, the same thing could happen.
But why does size matter? One of Kate's colleagues, Daniel Promislow, a professor of genetics, believes that the aging phenomenon is linked to cancer. Large dogs have a 50% chance of dying of cancer while small dogs only have a 10% chance.
No one seems to know where the seven dog years to one human year equation came about. It first appeared in math text books in the 1960's asking children to calculate a dog's age using the 7:1 ratio.
If you did factor the varying rates of ageing and differing life expediencies, a more accurate estimate across all breeds would be six dog years to one human year. So the seven years wasn't far off.
However, scientists have come up with a more accurate way to calculate your dog's age, which takes size and breed into consideration:
Years Per Human Year - For the First Two Years:
Years Per Human Year - For Three + Years
Small: Dachshund (Miniature) 4.32, Border Terrier 4.47, Lhasa Apso 4.49, Shih Tzu 4.78, Whippet Medium 5.30, Chihuahua 4.87, West Highland White Terrier 4.96, Beagle 5.20, Miniature Schnauzer 5.46, Spaniel (Cocker) 5.55, Cavalier King Charles 5.77, Pug 5.95, French Bulldog 7.65
Medium: Spaniel 5.46, Retriever (Labrador) 5.74, Golden Retriever 5.74, Staffordshire Bull Terrier 5.33, Bulldog 13.42
Large: German Shepherd 7.84, Boxer 8.90
You can see how the ratio varies significantly after the first two years. According to this model, a Bulldog will age an average of 13 years per human year whereas a Miniature Dachshund only ages about four years.
Unfortunately they only calculated the 3+ year ratio for a handful of dog breeds, but this means that my 1-year old Border Collie, Scuttle, is about 10.5 in human years!
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