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  • Video Game Wrapping Paper Gamer Gift Wrap Gaming Theme Birthday Christmas Paper Gift Wrap Paper Game Controller Print Home Decor by 3DCandleCreations

    Video Game Wrapping Paper Gamer Gift Wrap Gaming Theme Birthday Christmas Paper Gift Wrap Paper Game Controller Print Home Decor by 3DCandleCreations


    24.30 USD

    Video Game Wrapping Paper Gamer Gift Wrap Gaming Theme Birthday Christmas Paper Gift Wrap Paper Game Controller Print Home Decor

    Looking for a unique and exciting way to wrap your gamer gifts? Look no further than our video game wrapping paper! With a vibrant game controller print, this paper is sure to impress and delight any gamer in your life.

    Printed on premium gloss paper (90 GSM), our wrapping paper is high-quality and provides a smooth, clean look. Whether you’re wrapping a birthday or Christmas gift, this paper will add an extra element of fun and excitement to the festivities.

    And the best part? Our wrapping paper is available in two sizes: 24″ × 36″ or 24″ × 60″, ensuring that you’ll have plenty of paper to wrap all of your gamer gifts. It’s the perfect finishing touch to any gift, showing that you went the extra mile to make it special.

    So, whether you’re looking to wrap a new gaming console, a set of controllers, or any other gaming-related gift, our video game wrapping paper is the perfect choice. Order yours today and give your gifts the presentation they deserve!

    90 gsm fine art paper
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    http://dlvr.it/TKFjGC



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  • Welcome Home Buddy: Tips For Adopting A New Puppy Or Dog


    On a past entry we talked about getting a new cat (Owning A Domestic Cat 101: Selecting A New Cat Or Kitten), and we also made an entire series on how to own a new puppy; but we never mentioned how to pick the perfect dog for you. That’s why we are here today to share our best tips for adopting a new puppy or dog.

    When you are planning to adopt a dog, there are some very important points to keep in mind to make sure that you are delighted with your new dog. They can mean the difference between regretting your decision and having a wonderful new friend whom you will enjoy and cherish.

    Adopting a new dog can be a great experience. Owning a dog can greatly enhance your life. When you do some research and apply common sense, you are taking the first step toward acquiring and enjoying a brand-new friend.

    Mistakes To Avoid

    One mistake to avoid is buying a dog on the spur of the moment. You may see a dog in a pet shop, or read an ad in the newspaper, and decide that you absolutely must have that dog. A hasty decision in purchasing a new dog is never a good idea. Instead, you should read through this book, learn all there is to know about the breed of dog you are thinking about, and decide if he will fit well into your life and your home.

    A second mistake is to underestimate the cost of a new dog. Whether you choose an expensive purebred or a mixed breed, buying a dog is far from being the only cost involved. Your dog will need food and other supplies, and regular visits to the veterinarian. As you want your dog to always be in the fine condition as when you first bought him, you need to know that you can afford his upkeep.

    Another factor in disappointment is trying to recreate a relationship you had with a dog in your childhood or youth. You may be tempted to think that all dogs of this particular breed are exactly the same. You can avoid disappointment by realizing that every dog is an individual, just like people. Your new dog’s personality and needs may be much different from the dog you had before, even if they are the same breed.

    You will see how different a dog is from another once you train them, it won’t only teach you this, but it also help you connect with your little buddy on a different level of confidence and love: Puppy 101: A beautiful journey through dog training

    You should also avoid getting a dog solely because a member of your family wants one. Regardless of which person is actually in charge of the dog’s daily upkeep and maintenance, when a dog lives with a family they are a part of the family. Only if you know that they will be welcomed by everyone should you purchase it and bring it home.

    If you have never owned a dog before, your first dog can be a pleasure. It does mean, however, that you need to do your research well in advance of making your final decision. You must know what to expect, and that you are ready to become a dog owner.

    What Breed Is Best Suited For You

    When you think about comparing breeds of dogs, their size and appearance may be the first things to come to mind. There are many other factors involved in choosing the breed of dog that is right for you.

    Comparing breeds involves considering your family’s needs as well as your prospective pet’s. For example, some breeds are generally good with small children while others are not. If there are children in your household, choosing a breed of dog which is known for gentleness and playfulness is wiser than choosing one that is tougher or aloof.  It is much better to make a wise decision about a breed than to expect your new dog to conform to your household.

    As breeds of dogs have their own personality traits and characteristics, you should choose the best match for yourself and your family. You may be thinking of a pet who will be a good guard dog, one that will be your companion, or one who loves to frolic and play. When you make note of your expectations, it will be easier to find the breed best matched to you.

    Another important point to consider when comparing breeds are health issues. As many purebreds are much more susceptible to developing various types of health problems, knowing which issues pertain to the breed you are considering can help you to avoid heartache and costly veterinarian expenses. You should know what to expect from the particular breed before you make your final decision.

    Some breeds require more upkeep than others. Whether it is a matter of frequent shedding, or bathing more regularly than others, you can narrow your choices down to the breeds which best match your ability to take care of a new dog. It is also a good idea to consider how much food and other supplies he will need on a regular basis. We have an extended talk about this last part in Healthy Dog: The Raw Dog Diet, Food Allergies And Vitamins

    When you have taken all of these points into consideration, there is an additional factor which will also help you to choose the breed that is best for you: you want a dog that you will love, and enjoy spending time with for many years to come. You may have a particular breed in mind, or you may be waiting to find the right one. When you keep in mind that you and your new dog will establish a mutually-beneficial relationship, you will find the ideal breed of dog to invite into your life.

    Consider A Mixed Breed

    Whether you have your heart set on a particular breed of dog or are waiting to find one which seems appealing, there is another option for you to consider. A mixed breed may be exactly the kind of dog you want.

    Contrary to common opinion, there is nothing substandard about mixed breed dogs. Not only do they make ideal pets, they are also quality animals. If you have not yet made up your mind about a specific breed, or are open to other possibilities, you might want to think about adopting a mixed breed dog.

    There are some important benefits to mixed breeds. First, logically, a mixed breed dog will almost always be much less expensive than its purebred counterpart. If you want a delightful pet which does not break your budget, a mixed breed dog may be a good option for you.

    Second, mixed breed dogs do not generally have the health complications often associated with many purebred dogs. If you choose a mixed breed, it is more likely that he will remain healthier, long into his older years.

    There are a number of places where you can acquire a mixed breed dog. If you have not yet reached a decision about the kind of dog you want, you can also look around to see what is available. You can find advertisements for mixed breed dogs in nearly any newspaper, or you can visit your local animal shelter. Many people advertise dogs free-of-charge or at low prices when they are moving, or for other reasons. Animal shelters have a surplus of mixed breed dogs. Many animal shelters include spaying or neutering, deworming, and canine immunizations for dogs who are adopted.

    The most important reason to get a mixed breed of dog: As people tend to prefer purebred dogs, there are large numbers of mixed breed dogs who need homes. When you consider adopting a mixed breed dog, you can give a wonderful dog a new home of his own. In return, your mixed breed pet will be the light of your life and a source of joy.

    What To Expect

    A successful adoption means being reasonable about your own expectations, and about what you can offer to your new pet. You will have the best results if you consider these expectations before you make your final decision about adopting a dog.

    First, you should think about what you expect from the dog you want to adopt. The role he will play in your life is one factor. Are you looking for a dog who will guard your home and family, one who will be your buddy, or a dog who will get along well with your children and other pets in your home? When you have the answers to these kinds of questions, it will help you to decide on the dog that is best for you.

    You also need to know the expectations you have regarding your new pet’s personality, temperament, and character. You may be looking for a dog who has a boisterous personality and is very active, or a dog who is calm and quiet. These factors also influence the kind of dog you should adopt.

    As expectations are a two-way street, you also need to think about what you can offer to your new pet. You may have an abundance of free time to spend with your dog, or a busy schedule where the amount of time you can devote to your dog will be rather limited. Although all dogs need their owners’ time, some are more demanding than others. This includes play time, and time which you must put into your dog’s upkeep. The dog you choose should fit into your lifestyle without many adjustments on either his part or yours.

    The lifestyle factor is relevant to your family, also. Which person will be taking care of the dog on a regular basis is one example. Whether he will be a family dog, or primarily one person’s special pet, the responsibilities for his care should be discussed and agreed upon before you adopt him. In some families, giving a new pet to a child is often seen as a good way for youngsters to learn about responsibility. However, whether your child is a toddler or a teen, it is probably unwise to give them full responsibility for this new pet.

    Although developing a sense of responsibility, and developing a relationship with a dog can both be good experiences for children, too much emphasis on responsibility may lead to them resenting their dog and not taking proper care of it. It is important to be reasonable with how much you can expect from the child.

    The best way to raise a puppy is with positive dog training. Develop a beautiful bond with your animal partner and learn how to build your relationship on confidence and love: Time for puppy preschool: Get the basics for positive dog training

    Keep In Mind

    If your family frequently takes family vacations, or if you often go away on business trips, these factors need to be considered. Whether you plan to take your dog with you on vacation, or must leave him behind when you travel, making decisions in advance about how he will fit into your lifestyle can save time, confusion, and even money, later on.

    The financial obligations of a dog are important factors. Veterinarian bills, dog food, and other routine parts of dog maintenance should be thought through well in advance of adopting a dog. The upkeep and maintenance of some dogs is more costly than that of others. You must know that you can easily afford him. You would not want a high-maintenance dog if you are on a limited budget, nor would you want unforeseen expenses after you have adopted him and brought him home.

    A successful adoption includes being reasonable about your expectations. You need to know what you expect from him, and what he can reasonably expect from you. When you put a little time into thinking about these factors before you adopt a dog, you will be more likely to be completely satisfied with the dog you choose.

    If your new pet will be living with your entire family, devoting some time into discussing these subjects with your family will be beneficial to everyone concerned.  It will reduce the chance of unforeseen surprises, and result in the adoption being a positive experience for your new pet and every member of your household.  He will truly be a welcome addition to your family.

    Networking With Others

    You may not have thought of networking as being an important part of adopting a dog. There are a number of reasons why networking can make the adoption more successful. It can help you in choosing the right dog, and enhance the experience of being a dog owner.

    Before you actually adopt a dog, you can learn a lot about the breed by networking with people who already own one. While there are many good ways to learn about dogs, nothing beats the first-hand experience of a dog owner. You can network with owners, either in person or online, and get very positive results. Most dog owners will love to share information with you, as well as personal stories about life with their pet. You can gain a wealth of valuable information and input from dog owners, and you may even make some new friends.

    Networking is also good after you have adopted your new dog and taken him home. In many instances, the best place to get advice and the answers to questions is from people who have owned a dog for a long time. They can be the ideal source of information, as well as friendships based on your common interest.

    No matter what kind of dog you are considering, it is likely that you can find online forums and clubs devoted to your particular breed of dog and their owners. In some regions, you may even be able to find clubs in person not far from where you live.

    Whether you have already adopted a dog, or are still considering all of the possibilities, the firsthand information you receive by networking with other dog owners will be beyond compare.  It should definitely be in your plans when you are adopting a new pet.

    A concerned dog owner would want to be sure their pet is healthy, take a look at this: Dog food for puppies: Why is it so important to get the best food for dogs

    Researching Your Breed

    The more you know about the dog you adopt, the happier you will be about your decision. Getting the facts by researching the breed you have chosen is an essential step in being satisfied with your new pet. There are some key points which you should look for when you are researching a breed.

    If you have decided to adopt a purebred dog, you may have much or little interest in his pedigree. However, even if you do not consider it to be an important factor, you should still gain all of the information. You can request a copy of the dog’s pedigree papers, which should include all of the details about his parentage and bloodline. As many breeders of purebred dogs own the parents of the puppies they have for sale, visiting your new dog’s parents can be a positive experience.

    It is a good idea to be wary of breeders or individual dog owners who state that their dog is a purebred but do not have papers as proof of this. While they may be completely honest, the possibility that they are not is something to keep in mind before you agree to adopt the dog.

    When you are researching the breed you have chosen, the main points are to help you in deciding if this is the right breed for you, and what to expect from owning your new pet.  You can research on the internet, by talking to owners and breeders, and by visiting the section about dogs in your local library.

    You Dog’s Breed History

    Learning about the history of your breed can be an enlightening experience. Whether you have interest in such factors as where the breed originated or not, there is valuable information to be found in the breed’s history. One example is the breed that has been bred for a specific purpose. Not only will you find this interesting, it will also help you to understand your dog’s temperament, attitude, and personality.

    What can you find in the history of a breed? The facts you come up with may be astounding! The dog you adopt may be the descendant of dogs owned by royalty, dogs which were primarily used as work animals, or dogs which were chosen as guardians of their masters. The more you know about where your breed came from, the more you will understand how the pet you choose fits into your life today.

    Researching a breed includes learning about the standards for this particular breed. Even if you are thinking no further than gaining a good companion, you may want the very best example of your breed. A little research will provide information on the factors which constitute top standards in color and markings, size, body tone, and other physical characteristics. The highest quality dog will meet these standards.

    As you have already read in brief, purebred dogs can come with a variety of health issues. Before you adopt a purebred, researching the health issues commonly associated with your breed can help you to decide if you want to take this risk, and to be prepared in advance. You need to know whether your breed is prone to developing health conditions from bone problems to cancer, and how you will deal with such conditions if they do occur.

    You want the experience of owning a dog to be positive for both yourself and your new pet.  When you do a little research ahead of time, the experience can be a good one indeed! You can gain a better understanding of your dog before he becomes a part of your family. When you have all of this important knowledge in advance, you can focus on enjoying many years together with your new pet.

    Depending on your dog’s breed, they will be easier or harder to train. You might want to take a look at this too: Time for puppy preschool Part 2: Training Your New Puppy

    Getting To Know Your Dog

    No matter how much time you put into learning about the breed you have chosen, there is an additional point which you should consider: while there are many factors common to a particular breed, each dog is still an individual. You can gain a fair amount of understanding of what the breed is like, but getting to know your own dog means going a little further.

    The best way to get to know your dog is with in-person visits before you make your final decision to adopt him. If the breeder you have chosen lives fairly close to you, or if you are able to travel, the time you put into this will be invaluable. When you can meet, visit, and spend time with a dog, you will be able to determine if he is the right “fit” for you.

    Spending just a small amount of time in your dog’s company will help you to see what his personality and behavior are like. You may find that you both are a good match immediately, that you grow to adore each other, or that there are clashes which prod you to decide that this is not the right dog for you. If you have the opportunity to do so, meeting and spending time with the dog before you adopt will be very beneficial to you both.

    Please feel encouraged to say hello – we’ll be happy to help with any questions you might have, and if you’d like to comment on our site, products or service, we’d love to hear from you!



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  • Pet Safety Checklist for Home and Yard


    Keeping our pets safe is something we should be continually aware of, not just when we get a new puppy or kitten!  Any veterinarian’s office will tell you that there’s a ton of dangerous stuff around people’s homes and yards …

    The post Pet Safety Checklist for Home and Yard first appeared on People Loving Animals.



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  • I Found Ultrasound in My (Dog’s) Home

    I Found Ultrasound in My (Dog’s) Home


    A scientific diagram on a black background with time on the x axis and frequency on the y axis. The frequency range extends to 70,000 Hz. Colors indicate the amplitude of the sound, described further in the caption.
    Four speeds, from slow to fast, of an Andis rotary tool for nail grinding

    People in the dog community are worried that sounds we can’t hear might be bothering our dogs. But we can’t check for ultrasound with consumer equipment, even smartphones, because consumer microphones don’t detect sound above 20,000 cycles per second (20,000 Hz). They have no reason to, since we can’t hear in that range. But dogs can. They hear up to 45,000 Hz or higher.

    My Search for Ultrasound

    In 2023, I bought an ultrasound microphone and learned how to interface it with my equipment. In January 2024, I published a post with instructions on how to check your home and environment for ultrasound that your dogs might be able to hear. I found that many ordinary noises had an ultrasound component—things like clickers, keyboard strokes, motors, even barking dogs. But I was looking for duration or intermittent ultrasound that might be generated by electronic devices and didn’t have a component audible to humans.

    I didn’t find any for a while, but I kept searching. You can see my list of items that didn’t emit detectable ultrasound below.

    I recently checked the sound environment again, and found some constant, low-level, electronics-generated ultrasound in dogs’ hearing range that was not accompanied with anything in the human hearing range.

    Three power adapters at the end of cords. Two are much bigger than standard wall plugs
    The culprits: three adapters that put out ultrasound, but no sound audible to humans

    I found what people have been worried about: sound that dogs can hear but we can’t. But the sound was very quiet; it would likely be inaudible unless a dog was very close.

    This ultrasonic noise was emanating from ordinary AC/DC adapters. I have at least 20 of these in my house. I found three that put out a high-frequency noise that was outside of humans’ hearing range. These were the adapters for:

    • A floor lamp with a 24 V DC power supply. It put out a group of frequencies peaking around 21,000, 31,000, and 43,000 Hz.
    • A decorative “Moon” lamp with a 12 V DC power supply. It put out a group of frequencies peaking around 23,000, 28,000, and 33,000 Hz. This adapter even put out a little sound when the lamp was off, but more when it was on.
    • A Fi GPS collar charger that output 5 V DC. The USB adapter put out a band of frequencies peaking around 22,000, 30,000, and 45,000 Hz.

    Note that it was the adapters, not the lights or the charger putting out the sound. I spent a lot of time pointing my microphone at the wrong ends of things!

    The following image shows the ultrasound put out by the adapter of the floor lamp. The x axis is time and the y axis is frequency. You can see blue and green bands in the 20–70 kHz range that correspond to the peaks I listed above during the periods the lamp is on. Also note that there is no change in the sound output lower than 20 kHz when the lamp is on. That means that we humans can’t hear the adapter. (The thin vertical lines were created by the click of the remote for turning the lamp on and off.) For more information on reading this kind of diagram, see the page of examples that accompanies this post.

    A scientific diagram on a black background with time on the x axis and frequency on the y axis. The frequency range extends to 70,000 Hz. 
The diagram shows time periods where a lamp is on, then off, then on again. The findings are described in the text above the image.

    I found one more item that had a constant, quiet, high-frequency sound in the human hearing range plus sounds in the ultrasound range. These sounds were coming from a battery charger for a Dremel tool (8220). It put out an audible tone at 6,000 Hz, and harmonics (mathematically related higher tones) at 12,000, 18,000, and 24,000 Hz. The charger itself (the part where you insert the battery, in this case not the wall plug) has a built-in AC/DC adapter.

    AC/DC Adapters

    AC/DC adapters function as power supplies for devices that use direct current and lower voltage than what our wall outlets provide. They are the things that often annoy us by taking up more than one space on a power strip. They are often referred to as wall warts because of their bulk. That makes them easy to locate in your home. Two of my culprits were wall warts, and one had a profile almost as small as a normal AC plug.

    What Do They Sound Like and How Audible Are They to Dogs?

    Here are recordings of the sounds, digitally altered to make them audible to humans. There is some unavoidable distortion, but you can get the general idea. To create these sounds, I did the following:

    1. I recorded the sound in WAV format using my Dodotronic 192 kHz ultrasound mic attached to my iPhone 12 Mini using the free Ultrasonic Analyzer app.
    2. I imported the audio file into the free sound software Audacity on my Mac.
    3. I applied a high-pass filter to isolate the ultrasound.
    4. I amplified the signal. The sound was so quiet that I needed to amplify it to be able to see on the screen where the device was on and where it was off so I could edit. See this image.
    5. I changed the pitch to bring it down to human hearing range.
    6. Sometimes I amplified again.
    7. I exported the file as an MP3. The limitations of MP3s don’t affect the sound quality needed for these recordings.

    Floor Lamp


    “Moon” Lamp


    Fi Collar Charger Plug


    A table lamp on a wooden that looks like the moon. The lamp stand is a circular wooden disk.
    The moon lamp’s power adapter puts out extremely quiet ultrasound even when the lamp is off

    All the original sounds have ultrasound components in dogs’ hearing range, between 20,000 and 45,000 Hz. But the adapted versions are amplified in the above recordings; in all cases, the original sounds were much, much quieter.

    For those of us who are concerned about them possibly bothering dogs, there is a blessing. Ultrasound waves are tiny. For instance, the wave that corresponds to the frequency of 25,000 Hz is 14 millimeters, or a little more than half an inch long. For comparison, a 60 Hz wave such as we could hear in a thunderstorm is 5.7 meters or almost 19 feet long. The tiny ultrasound waves don’t travel far over distances because they are reflected and absorbed so easily. It’s a good bet that even dogs don’t hear sounds such as the ones I presented above unless they are close to the source. The sounds are not blasting through whole rooms.

    The two lamps are within about 2 meters of where Lewis sleeps on my bed. While recording, I moved the ultrasound mic from the lamp’s power adapter toward where Lewis sleeps. The mic stopped being able to pick up the sound at about 1 meter. You can see the attenuation of the sound as I moved the mic in this image.

    Items I Tested with Null Results

    Various scholarly and lay articles include lists of household devices that may put out ultrasound. I chose the following devices from those sources, tested, and detected no ultrasound. Other brands or models of these items might yield different results. Note that some of these items have been reported to scare dogs (Grigg et al., 2021). But noises do not have to have an ultrasound component to do so, and we don’t know if the ultrasound component contributed to the fear response.

    • new and old lights: fluorescent, incandescent, LED including ring lights, night lights (which include adapters)
    • screens: desktop computer, tablets, laptops, flat-screen TV
    • motion-sensitive wildlife camera (Meek et al., 2014)
    • laptop fan
    • computer power adapters (I was sure I’d find a culprit here, but no. The Apple devices were all silent.)
    • power strips
    • USB wall plugs (these are also AC/DC adapters). The only noisy one was the Fi collar plug.
    • smart plugs (two brands)
    • refrigerator, microwave, oven
    • smoke alarms on standby (not beeping)
    • remote controls (except for occasionally the click of a key)
    • ultrasonic humidifier
    • space heater
    • various fans

    A Special Note about Smart Plugs

    Two smart plugs sitting on a marble-top counter

    Because of a viral social media post from November 2023, many people are concerned about the possibility of so-called “smart plugs” putting out ultrasound. While it is possible, neither of the two I tested put out any. I deliberately chose cheap ones, because they are less likely to have strong quality control. An engineer pointed out to me that standard QC includes making sure electronics don’t put out noises such as coil whine or capacitor squeal in the human hearing range. But there is far less concern about the ultrasound range, for the same usual reason. We can’t hear it.

    Note that smart plugs are not AC adapters. You might plug an adapter into one, though. Many smart plugs note 2.4 GHz or 5 GHz on the back. Don’t worry; these numbers refer to compatible Wi-Fi types and are not audible sound frequencies to humans or dogs.

    Items That Produce Sound That Includes Ultrasound

    These are not the stealth items that people are worried about, but I was fascinated to find so many noisy items that included ultrasonic frequencies. I created a page of ultrasound examples that includes images of the output of some of these loud items.

    A woman using a rotary hammer drill, drilling straight down into a brick step. The drill is large, with two handles.
    I had on a mask and a face guard, but ear protection would have been a good idea when using a rotary hammer drill as well!
    • computer keyboard strokes
    • clicker
    • ultrasonic squeaker toy
    • regular squeaker toy (you can see an image of the ultrasound components of noise from the preceding four items here)
    • barks and whines of a small dog (Sibiryakova et al., 2021)
    • clicks of various switches (like on remotes to fans or lamps)
    • smoke alarms doing a test beep
    • computer mouse clicks
    • hands clapping
    • jingling keys
    • hand-held hair dryer
    • jingling dog tags
    • upright vacuum
    • small rotary tools (e.g. Dremel)
    • Makita screwdriver and drill
    • Makita rotary hammer drill

    For some of these items, the ultrasound component was among the loudest of the frequency bands. Because dogs’ hearing is more sensitive in the upper frequencies than ours, if a dog were close to such an item, they would likely hear a louder sound than we do. Most apps that measure volume, such as SPL meters for smartphones, don’t include the ultrasound range.

    People frequently ask me about using ear-muff type ear protection for dogs who are fearful of thunder or fireworks. I always explain that such gear can’t protect against the huge sound waves generated by those low-frequency sounds. But these ear protectors can usually prevent the transmission of smaller sound waves very well. If your dog has been conditioned to wear ear gear, it would be a kindness to have them wear it as much as possible for grooming. The hair dryer and rotary tools I checked were loud in the ultrasound range, on top of being loud in high frequencies humans and dogs can both hear. Clippers may also put out ultrasound, but I didn’t have any to test.

    “Ultrasound” Is an Arbitrary Definition

    It’s crucial to understand that sound doesn’t magically change when the frequency goes over 20,000 Hz. That boundary of 20,000 Hz for ultrasound is derived from “sound that is too high for humans to hear.” It’s a handy distinction, but it’s based on biology, not physics. It’s anthropocentric. Ultrasound is just sound with a higher frequency. I always make the point in my sound webinars that we shouldn’t assume that a sound is aversive to dogs if it is in the ultrasound range, even though there are some oddball online articles that claim this is so. Keep in mind that dogs’ hearing evolved to function in that range. Many small animals that are prey to canids vocalize in that range. It’s no coincidence that domestic cats can hear in that range and even higher, too.

    Anything happening above 20,000 Hz is a mystery to us. But it’s not to dogs; it’s just part of their world. It is quite possible that a constant noise in the ultrasound range could bother some dogs. It’s also likely that many dogs habituate to it, just as many dogs (and many humans) stop noticing other ongoing stimuli. For instance, the furnace is on in my house as I write this. There is the sound of the fan blowing air through the ductwork and perhaps the sound of the furnace itself coming through the registers. But I don’t “hear” these long duration sounds unless I turn my attention to them. Likewise, most of us who live in cities don’t notice the common 60-Hz hum of transformers. But people who live in rural areas may notice it when they come to town. And some people are immediately bothered by some ongoing sounds or never habituate.

    I have an example in another post of dogs hanging around during a very obnoxious ongoing sound, even deliberately basking in the sun close to the sound source. This example “proves” nothing about how all dogs respond to sounds. However, it provides evidence that we may not be able to predict their response.

    Limitations of My Testing

    In the interest of transparency, I have created a separate page that delineates aspects of my home setup that affect the precision and accuracy of my data, in this and other posts that present results. I do not have controlled laboratory conditions. But I include in the list how the limitations were mitigated and why I can be confident in the results I have presented here.

    Conclusion

    Two major takeaways:

    • The “stealth” sounds I found are likely inaudible unless a dog approaches close. Here is a photo of sound-reactive Lewis standing right next to the adapter for the floor lamp while he determines whether I have “webinar or Zoom treats” in a drawer.
    • The ultrasound generated by motors can be loud. Properly conditioned hearing protection would be beneficial for dogs undergoing grooming procedures where a hair dryer or rotary tool is used.

    Others have found more stealth ultrasound than I have, as described in this dramatically-titled CNET article. However, the author doesn’t discuss the rapid attenuation over distance of ultrasound, nor do they give us a good sense of how loud the sounds are.

    I will keep performing periodic sweeps for ultrasound culprits in my area and report any findings.

    Supplemental Materials

    There are two pages with information relevant to this post:

    Copyright 2025 Eileen Anderson

    References

    Grigg, E. K., Chou, J., Parker, E., Gatesy-Davis, A., Clarkson, S. T., & Hart, L. A. (2021). Stress-related behaviors in companion dogs exposed to common household noises, and owners’ interpretations of their dogs’ behaviors. Frontiers in veterinary science8, 760845.

    Meek, P. D., Ballard, G. A., Fleming, P. J., Schaefer, M., Williams, W., & Falzon, G. (2014). Camera traps can be heard and seen by animals. PloS one9(10), e110832.

    Sibiryakova, O. V., Volodin, I. A., & Volodina, E. V. (2021). Polyphony of domestic dog whines and vocal cues to body size. Current Zoology67(2), 165-176.



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