Admin 
Dogs have incredibly impressive senses, and we typically associate dogs with their amazing sense of smell. But how well do they hear?
While dogs hear some sounds better than humans, humans can hear other sounds better than dogs.
Here, we take a deep dive into how well dogs hear compared to us, how their ears work, and why they seem to sense things before they happen.
How Does a Dog’s Hearing Compare to a Human’s?
Dogs are better at hearing high-frequency and quieter sounds than we are, but we’re better at hearing low-frequency sounds than dogs.
High Frequency
Frequency is most typically measured in Hertz (Hz). Deep, bassy sounds have low frequencies. High-pitched sounds like birds chirping and children laughing and squealing are high-frequency sounds.
Decibels (dB) measure the sound’s pressure, which is essentially the volume of the sound, also called the amplitude wave.
Dogs can hear high-frequency sounds that go as high as 45,000 Hz, while we can only hear up to 20,000 Hz. So, dogs can hear high-pitched sounds that we can’t hear at all. This is how dog whistles work (which range from 23,000 to 54,000 Hz).
For example, a dogs can pick up the sound of mice squeaking in a field while you wouldn’t. This also helps explain why you might see your dog reacting to something that you can’t see or hear.
Low Frequency
However, we hear lower frequencies better than dogs. We can generally hear down to about 20 Hz, while dogs can only hear as low as about 67 Hz.
Sounds 20 Hz and lower are infrasonic sounds, which dogs definitely can’t hear, but they can probably feel it. This can be things like a volcano erupting or the sound of a bass guitar in music.
Dogs are capable of hearing a low-frequency sound if the volume is loud enough (high amplitude wave).
Comparison Chart
As well as dogs can hear, there are other animals that hear even better. This comparison chart puts everything into perspective.
| Animal | Hz |
| Porpoise | 150,000 |
| Beluga Whale | 123,000 |
| Bat | 110,000 |
| Mouse | 91,000 |
| Cat | 64,000 |
| Dog | 45,000 |
| Rabbit | 42,000 |
| Cow | 35,000 |
| Horse | 33,500 |
| Sheep | 30,000 |
| Human | 23,000 |
| Elephant | 12,000 |
| Owl | 12,000 |
| Goldfish | 3,000 |
| Chicken | 2,000 |
| Tuna | 1,100 |
How Do Dogs’ Ears Work?
An important part of a dog’s hearing starts with the pinna, the outer part of the ear that you see. Whether your dog’s ears are long and floppy or short and perky, the pinna acts like a satellite dish.
Their ears are shaped to catch sound waves, which are transmitted into the ear canal and vibrate the eardrum. From here, tiny bones in the inner ear magnify the sound.
Dogs’ ears are also larger than our own, so they have the advantage of having a much better pinna than humans.
Dogs can move their ears independently of each other as they have more than 18 muscles that control the ears. They can turn, raise, lower, and tilt their ears to pick up a sound and where it’s coming from, and their ears also express how they are feeling.
Why Do Dogs Have Such Great Hearing?
Dogs have a predatory heritage that makes hearing prey essential to their survival. Wolves are the ancestors of modern dogs, and their common prey include small rodents like rats and mice. Their survival depends on being able to hear high-pitched squeaks so they can locate their next meal. Interestingly, the reason humans aren’t so finely tuned to high-pitched sounds is that our ears evolved specifically to hear the pitch of the human voice.
Some people have thought that dogs have a “sixth sense” because they seem to detect events like earthquakes before they happen or bark at something in your home that isn’t visible. But it’s a dog’s hearing that keeps them on high alert for every unusual noise.
Since we know that dogs can hear sounds that we can’t, they can pick up something outside that we aren’t aware of.
That said, there’s no question that dogs are perceptive. Their hearing is excellent and so are their other five senses. The combination of their powerful senses of smell and hearing can help explain the “sixth sense” reactions that dogs seem to have.
Hearing Problems in Dogs
Just like us, dogs can develop hearing problems, particularly as they age. Signs that a dog has trouble hearing include not responding to sounds or their name being called and not always being woken up by a loud noise.
Some breeds are prone to hearing loss and might have congenital disabilities. Other causes include:
Treatment is tricky because the damage is irreversible for many of these causes. In some cases, surgery might be necessary, and there are hearing aids available for some dogs.
Even if your dog’s hearing fails, you can use body language and teach your dog hand signals as a way to communicate. Some dogs will also still be able to hear a dog whistle, which is another potential method of communication.
Conclusion
Humans are better at hearing low-frequency sounds and locating sounds, while dogs are best with high-frequency sounds. They are also better than us at hearing quiet sounds. That said, dogs don’t have the best hearing in the animal kingdom. A cat’s ear has about 30 muscles (compared to the roughly 18 muscles in a dog’s ear), and they can hear up to 48,000 to 85,000 Hz (compared to the 45,000 Hz with dogs). Moths can hear up to 300,000 Hz!
We hope that this helps explain why your dog seems to know things will happen before they do. Those sensitive ears can pick up all kinds of information!
See also: Do Dogs Think Humans Are Dogs Too? The Ideas Behind Their Relationship With Us
Featured Image Credit: nori_jaafer, Pixabay
