Furry facts

10 amazing facts you probably didn’t know about dogs

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Dogs have walked alongside humans for thousands of years, earning them the title of "man’s best friend." But loyalty and love aren’t the whole story. Behind every wagging tail lies a bundle of quirks and special skills that most people never notice. Some of these traits are downright funny, others almost unbelievable, and a few might even make you see your own pup in a brand-new light. From secret talents to curious habits, here are 10 surprising facts about dogs that prove they’re far more than just companions.

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Believe it or not, dogs can favor one side of the body over the other. Very much like humans, pups often show a clear preference when it comes to their paws. This phenomenon is called "lateralization," meaning individuals stick to their "dominant" paw for most activities. Whether they’re batting at a ball, stepping off the couch, or greeting you with a shake, dogs consistently go left or right. In other words, they can be natural "lefties" or "righties," just like us.

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What may look like nothing more than a damp snout is actually a built-in ID card. If you take a closer look, every dog’s nose is etched with a maze of ridges, swirls, and tiny bumps, all arranged in a completely unique pattern. Much like snowflakes, no two are ever alike. In fact, a dog’s nose is as distinctive as a human fingerprint. Some researchers suggest that one day, nose prints could become as reliable as scanning a thumb, offering a surprisingly scientific way to tell every pup apart.

Image: Jamie Street

Emotions may be invisible to us, but to a dog, they practically float like a scent trail in the air. When your heart races with nerves or your mood lifts with joy, your body releases chemical signals. Thanks to their supercharged noses—armed with more than 220 million scent receptors—dogs pick up on those shifts instantly, often before you’ve even noticed them yourself. To your pup, stress has a specific smell, happiness another one, and so does calm. It’s almost like they’re emotional mind-readers, guided not by divination, but by an extraordinary sense of smell.

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Picture this: a blazing summer afternoon, the kind where the air feels heavy and the shade doesn’t give much relief. Your dog trots across the kitchen tiles, leaving a trail of little damp spots behind. At first glance, you might think you’ve spilled water somewhere. But if you look closer, you’ll discover tiny sweat prints, released straight from the pads of your dog’s paws, one of the few places where canines actually perspire. It’s their built-in way of cooling down, imprinted right onto your floor.

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Back in the 1930s, tales spread far and wide about a remarkable Australian cattle dog named "Bluey." Season after season, he rounded up livestock, worked alongside ranchers, and showed the stamina of an animal half his age. His energy seemed endless, and his loyalty never wavered. By the time he finally slowed down, Bluey had reached the astounding age of 29. That’s more than double the typical dog’s lifespan, and even today, his record still stands as the gold standard for canine longevity.

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Did you know a newborn Dalmatian doesn’t look like the spotted star of storybooks? In fact, every puppy arrives in the world completely white, its coat as blank as a brand new canvas. As the weeks go by, something magical happens and dark spots begin to appear, one by one, across their fur. Some cluster close, others scatter wide, giving each pup a unique pattern, almost like fingerprints. By the time they’re old enough to tumble around the yard, their trademark black or brown polka dots are in full bloom, as if nature itself had been painting in slow motion.

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Cheetahs may be the kings of speed, galloping across the savanna at nearly 70 miles per hour; yet, that lightning burst burns out fast. In less than 30 seconds, their muscles overheat and they have to stop, leaving them panting in the shade. Greyhounds, on the other hand, are built for the long run. With their lean bodies and powerful lungs, they can race at 45 miles per hour, keeping the pace far longer than their feline counterparts. Put the two in a sprint and the cheetah wins every time; switch to an endurance race, and the graceful greyhound takes the crown.

Image: Jamie Street

Here’s a mystery that still leaves scientists scratching their heads: when dogs pause to relieve themselves, many instinctively line up north to south. There’s no command from their owners, no obvious reason, it’s just a quiet ritual repeated across countless backyards and parks. Researchers suspect it’s connected to Earth’s magnetic field, suggesting that every pup carries a tiny compass tucked inside its body. If only ancient explorers had known about this! The exact reason remains unsolved, but it’s a reminder that our four-legged companions harbor instincts as enigmatic as the planet itself.

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It may sound like something from a sci-fi tale, but a dog’s ears are truly tuned for super-hearing. While human ears pick up around 20,000 hertz, a dog can catch pitches soaring to nearly 65,000. That incredible range means the faint squeak of a toy, the groan of a floorboard, or even the high whistle of a kettle miles away might reach them as sharply as if it were right next to them. For us, silence is easy, but for your pup, the air hums with hidden notes, an invisible orchestra of sounds we’ll never get to hear.

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Ever seen your pup snooze and suddenly start twitching, whimpering, or kicking its paws? That’s a dream unfolding. Just like us, dogs also slip into REM sleep, the stage where minds fire up and replay the day’s adventures. A quiet nap on the couch might transform into a romp through the park, a splash in a puddle, or a tug-of-war with their favorite toy. Sometimes you can even notice their ears flicking or their tail giving a sleepy wag. In dreamland, there are no leashes, no fences, no bedtime, but endless freedom to chase, play, and explore the world.

Hospital secrets

What is a "Code Gray" and what you should know if you hear it at the E.R.

A trip to the emergency room can be stressful enough without hearing doctors and nurses speak a language that sounds like a secret code. One minute, someone is asking for medication "STAT," the next there’s a "Code Gray," and another patient is suddenly "NPO." What do those words really mean? Some are official medical terms, others are insider slang, but they all help hospital staff communicate quickly when every second counts. Here are 10 of those codes explained.

The E.R. can be hectic and unpredictable. Most patients are frightened or uncomfortable, but now and then someone becomes aggressive because of pain, confusion, mental illness, or the effects of alcohol or other substances. That’s when you can hear "Code Gray" announced over the speakers.

The code is used to summon security officers to help manage a violent or combative situation. While color codes vary from one hospital to another, Code Gray commonly signals that staff needs extra assistance to protect patients, visitors, and healthcare workers. Even if you know it now, most people in the waiting room never know what happened, and that’s exactly the point.

You have a scheduled surgery, you’re in your bed waiting to be taken to the surgery room, and you ask for a cup of coffee to make the wait lighter. The nurse will probably tell you you’re an NPO. You may think it’s serious, but it’s simply a procedure.

"NPO" is an abbreviation that comes from the Latin phrase Nil Per Os, which means "nothing by mouth." It tells patients they cannot eat, drink, or sometimes even take medication until doctors say it’s safe. The rule is most common before surgery or certain medical tests, when food or liquids could increase the risk of complications or alter the results. It may be frustrating, but it’s an important part of keeping patients safe.

You’ve probably been through the experience of visiting an emergency room, either to get checked or to visit a loved one. In that part of the hospital where everyone is rushing to save lives, you’ve probably heard a doctor asking for the R.C.P. cart or medication "STAT!" It sounds urgent, and that's because it is.

The expression comes from the Latin statim, which means "immediately" or "without delay." Hospitals have used Latin medical terms for centuries, but STAT is one of the few that remains part of everyday conversation. When a doctor says it, the request jumps to the top of the priority list. It doesn’t always refer to a life-or-death situation, but it does mean the medical team needs something done as quickly as possible.

Newborns are always a reason to celebrate at the hospital. Parents usually rest happily next to their child as they receive congratulations from close relatives. However, the hospital is always prepared to handle extremely rare emergencies under "code pink."

If you hear a "Code Pink," it usually means a baby or young child is suspected of being abducted from the hospital. Within seconds, security officers respond, exits may be monitored or blocked, and staff begins following carefully rehearsed procedures. Although different hospitals sometimes use different color codes, Code Pink has become widely recognized across North America as one of the most serious alerts a hospital can issue.

If you’ve ever spent a few days in the hospital, you’ve probably noticed that some patients are walking up and down the halls, while others need help just getting out of bed. When a nurse refers to someone as a "walkie-talkie," it’s actually good news.

This informal expression refers to patients who can walk on their own, use the bathroom without assistance, and handle most basic tasks independently. It’s not an official medical term, of course, but it’s commonly used among healthcare workers because it quickly tells the next shift that the patient requires less hands-on care than many others.

As nurses change shifts, you’ll often hear them give a quick report about each patient. One person may only need medication, while another is described as a "total."

The term is short for a patient who requires total care. They may need help eating, bathing, getting dressed, turning in bed, or moving from one place to another. Although the expression sounds impersonal, it’s simply a practical way for caregivers to communicate how much assistance someone needs.

Most people hear "frequent flyer" and think of an airline reward program. And that’s correct, but in an emergency room, the phrase has a very different meaning.

A frequent flyer is an informal nickname for patients who repeatedly return to the hospital, often due to chronic illness, recurring medical conditions, or other ongoing health issues. Behind the light-hearted nickname is often a difficult reality. Many of these patients are simply dealing with medical problems that require regular emergency care, and the expression is just a way to make the experience a bit lighter among the familiar faces of doctors and nurses.

Not all codes are for patients. The next time you’re in a hospital, look closely at what the nurse is pushing from room to room. It may look like a small rolling desk with a computer on top. Staff often call it a "WOW," short for "workstation on wheels."

As hospitals switched from paper charts to electronic medical records, these mobile computers became essential. Nurses use them to review test results, scan medications, update patient charts, and check doctors’ orders without leaving the bedside. The name sounds funny, but the technology helps caregivers spend more time with patients instead of walking back and forth to a nursing station.

After getting a shot or having blood drawn, most patients never think about where the used needle ends up. It certainly doesn't go into an ordinary trash can.

Hospitals place needles, scalpels, and other sharp medical instruments into special containers designed to prevent accidental injuries. These sturdy, puncture-resistant boxes are sealed when full and safely disposed of in accordance with strict health regulations. This not only protects nurses, but it also protects cleaning crews, waste handlers, and even the public from dangerous needle sticks. It’s one of the most important safety measures in every hospital, even though most patients never notice it.

If you’ve ever watched a medical drama, you've probably seen a patient become so agitated that several staff members rush into the room. In situations like that, a doctor or nurse may ask for a "B-52." But the name has nothing to do with numbers themselves; it actually comes from a medicine.

B-52 is hospital slang for a fast-acting injection used to calm down patients who are severely combative or at risk of harming themselves or others. The nickname comes from a commonly used combination of medications that usually include diphenhydramine, haloperidol, and lorazepam. It’s strictly reserved for when other methods of calming the patient haven’t worked.