![[Dog Biology] Things You Might Not Know? Dog Trivia](https://media.ragnet.co.jp/img/1200__png__https://www.studiorag.com/files/2025/04/79a4076330f53464e5854ee6150cdf76.webp)
We’ve gathered some fun facts about dogs that we’d love dog lovers—especially those living with dogs and who absolutely adore them—to know.
These tidbits about canine behavior are compiled so that dog owners can enjoy learning more about the dogs who are such a close part of our lives and grow to love them even more.
It’s also great fun to use them as a quiz when you get together with your dog-loving friends.
Try learning and picking up knowledge in a quiz format about those puzzling behaviors and various body-related traits of dogs that you’ve always wondered about.
Even if you don’t know much about dogs, it’s a simple three-choice quiz, so feel free to give it a try!
- Trivia quiz about dogs: three-choice questions to learn fun facts
- [Dog Biology] Things You Might Not Know? Dog Trivia
- [Trivia] Do you know the answers? A roundup of animal quizzes
- A personality test featuring dogs, plus a quiz to find the dog that suits you
- Trivia quiz about cats: three multiple-choice questions to boost your fun facts
- A compilation of unsettling trivia and fun facts about Earth
- [Snake Quiz] Surprisingly fascinating once you know! Snake ecology & characteristics
- A collection of multiple-choice quizzes for elementary school students: trivia quizzes about everyday things.
- [Snake Trivia] Things you actually don’t know about snakes. Packed with astonishing facts!
- A collection of trivia quizzes about penguins: little-known facts about their ecology and fun tidbits.
- A three-choice quiz of useful trivia: a collection of questions you can use in everyday life
- A fun quiz you can use to kill time by yourself or with everyone
- Animal riddles
[Dog Behavior] Surprisingly Unknown? Dog Trivia (1–10)
Why do male dogs lift one leg when they urinate?
The behavior of male dogs lifting one hind leg when they urinate is familiar to many people. But what is the reason behind this behavior?
- to make oneself seem more important
- to balance (things out)
- to avoid bringing it too close to the ground
See the answer
to make oneself seem more important
The main reason male dogs lift one leg when urinating is to mark their urine as high as possible, making themselves appear larger. This helps them assert their territory and communicate their presence more clearly to other dogs. It’s also tied to very subtle social interactions within dog communities.
Do dogs have a dominant paw? True or false?
Many humans have a dominant hand, but do you think dogs similarly have a dominant paw? Let’s consider the answer to this question and the reasons behind it.
- ◯
- ✗
See the answer
◯
Dogs also have a dominant paw. Research has shown, through various behaviors and tests, that dogs tend to prefer using a particular paw. For example, by observing which paw a dog uses first when reaching for an object or running up stairs, you can infer the dog’s dominant paw.
How does a dog’s eyesight compare to a human’s?
- equivalent
- About twice as sharp as a human
- about 0.2 times (one-fifth) that of a human
See the answer
about 0.2 times (one-fifth) that of a human
Dogs' visual acuity is inferior to that of humans; using the standard in which human visual acuity is 1.0, dogs' visual acuity is generally around 0.2. Dogs are sensitive to movement and have excellent night vision, but their ability to distinguish fine details or distant objects is poorer than humans'. However, their motion-detection vision is far superior to that of humans.
Why do dogs often tilt their heads?
- showing curiosity
- Signs of being hungry
- Signs of not feeling well
See the answer
showing curiosity
A dog’s head-tilting behavior is thought to be a sign of curiosity, such as trying to hear new or unclear sounds better. By doing this, dogs are attempting to pinpoint the source and direction of a sound more accurately. Dogs may also tilt their heads when they are trying to understand human speech.
Why are dogs’ noses wet?
- To know the wind direction
- to smell better
- It doesn’t mean anything in particular.
See the answer
to smell better
A dog’s nose is wet so it can smell better. A moist nose helps capture scent molecules in the air, enhancing a dog’s sense of smell. This is very important for activities like hunting and recognizing their surroundings. It also plays a role in regulating body temperature.
How many times stronger is a dog’s sense of smell than a human’s?
A dog’s sense of smell is far superior to that of humans, but on average, how many times more capable is the human sense of smell compared to a dog’s?
- about 100 times
- about 1,000 times
- about ten thousand times
See the answer
about ten thousand times
A dog's sense of smell is said to be about 10,000 times better than that of humans. This is why dogs can detect extremely faint odors that human noses cannot perceive, such as the scent of illness or gas leaks. However, depending on the type of odor, it is sometimes said to be as much as 100 million times better.
How many types of muscles are in a dog’s ears?
- about five types
- about 12 types
- about 18 types
See the answer
about 18 types
A dog’s ears have about 18 different muscles. In contrast, human ears have only three, so dogs can move their ears very freely. As a result, dogs are highly sensitive to surrounding sounds and can even tilt each ear in different directions.