15 Dog Facts You Always Heard but Aren’t True

Dogs are surrounded by myths and misconceptions that have been perpetuated over the years. Some of these “facts” can lead to misunderstandings about dog behavior, health, and care. Let’s disprove 15 common myths and set the record straight about our canine companions.

Dogs Age Seven Years for Every Human Year

One of the most widespread myths is that dogs age seven years for every human year. In reality, a dog’s aging process is more complex and varies by breed and size. Larger breeds age faster than smaller ones due to factors like genetics, metabolism, and growth rates. 

Dogs Only See in Black and White

While dogs don’t see humans’ full spectrum of colors, they aren’t limited to just black and white. In contrast to humans, dogs are unable to distinguish between shades of red and green. Their vision is similar to that of a human with red-green color blindness.

A Wagging Tail Means a Happy Dog

A wagging tail can indicate many emotions, not just happiness. It can also signify excitement, agitation, or even aggression. The context of the wag and the dog’s overall body language should be considered to understand what they’re trying to communicate.

You Can’t Teach an Old Dog New Tricks

Contrary to popular belief, dogs of all ages can learn new tricks and commands. Older dogs may take longer to train due to ingrained habits, but with patience and positive reinforcement, they can learn just as effectively as younger dogs.

Dogs Eat Grass Because They’re Sick

Dogs eat grass for various reasons, not always because they feel unwell. Some dogs enjoy the texture and taste, while others might do it out of boredom. Occasionally, dogs eat grass to induce vomiting if they have an upset stomach, but this is not the primary reason.

Dogs’ Mouths Are Cleaner Than Human Mouths

This myth stems from the observation that dogs’ wounds often heal quickly after being licked. Even though dogs’ saliva contains some antibacterial properties, their mouths harbor many bacteria that can be dangerous to humans and other animals. It’s best to avoid letting dogs lick open wounds or faces.

Dogs Eat Poop Because They’re Lacking Nutrients

Coprophagia (eating feces) is a common but misunderstood behavior. While sometimes linked to dietary deficiencies, it often results from other factors like boredom, stress, or mimicking their mothers (who clean their puppies by eating their feces).

A Warm, Dry Nose Indicates Sickness in Dogs

Due to various factors, such as activity level, hydration, and the environment, a dog’s nose can change from moist to dry throughout the day. It does not necessarily indicate illness. Instead, monitor other signs such as appetite, behavior, and energy levels for a more accurate health assessment.

Dogs Feel Guilty When They Look “Guilty”

The classic “guilty look” in dogs is often misinterpreted. This expression, characterized by a lowered head, averted eyes, and a tucked tail, is a response to the owner’s body language and tone of voice. Dogs are reacting to their owner’s displeasure rather than feeling actual guilt for their actions.

Dogs Should Eat Like Wolves

Although dogs and wolves share common ancestors, domesticated dogs have adapted to a different diet over thousands of years. Because dogs are omnivores, they can sustain a balanced diet that includes vegetables and meat. A raw diet may be favorable for some dogs, but a veterinarian must carefully plan and supervise it

Dogs Can’t Be Left Alone

If properly trained and given adequate mental stimulation, dogs can be left alone for rational periods of time while still enjoying companionship. Gradual desensitization and providing toys or interactive feeders can help reduce separation anxiety.

Only Male Dogs Hump

There is no difference between males and females when it comes to humping behavior. This action is not always sexual and can be related to play, dominance, or even excitement. If humping becomes excessive or problematic, it’s advisable to consult with a veterinarian.

Dogs Don’t Need Sunscreen

As with humans, dogs are prone to sunburn, especially those with short, light-colored fur and exposed skin. Applying pet-safe sunscreen to sensitive areas like the nose, ears, and belly can help protect them from harmful UV rays during prolonged sun exposure.

A Dog’s Yawn Means They’re Tired

Dogs indeed yawn when they are tired. However, yawning is also an indicator of stress, anxiety, or confusion. It’s a common calming signal used to diffuse tension in social situations. Understanding the context of the yawn helps in interpreting whether your dog is feeling tired or stressed.

Dogs Should Regularly Chew Bones

The myth that dogs benefit from chewing bones for dental care and diet has existed for a while. While chewing can help with dental health, bones, especially hard ones like beef or pork, can harm teeth. Too many bones can also upset a dog’s digestion and nutrition balance. It’s safer to opt for dental chews and regular dental care instead.