Don’t go around poking bears

Did you know that these animal facts are not true?

Certain animal facts are just a given: Everyone knows that bats are blind, bulls hate the color red, and that touching a toad will give you warts. But are these things really true, or are they just wives' tales that have been passed down through generations? Let’s have a look at some of these myths and see if they have some truth in them, or if they are just a folkloric invention.

The first misconception here is the meaning of ‘hibernation’ —a state where an animal drastically lowers its body temperature, appearing lifeless, and sleeps through the cold season. While most bears are less active through the Winter, they don’t hibernate. They enter a state called ‘torpor’, where they reduce their temperature and drop their heart rate, but they are lethargic, not sleeping. They will react to external stimuli, meaning you can still come across these furry fellows during a winter hike.

In popular tradition, the color red is associated with anger, but this has nothing to do with bulls, as they are partially colorblind and, as such, unable to see red. This common misconception stems from bullfighting, where the matador uses a brightly colored—usually red—muleta (a cloth hanging from a stick) to provoke the bull. What angers the bull is the whipping of the muleta, not its color. Why do they use a red cloth? To disguise blood spatters.

"If you don’t wash your hair, you will catch lice.": You must have heard this old wives’ tale. Another popular belief claims that lice actually prefer clean heads, as they can move more freely in a clean scalp. As a matter of fact, lice don't care about your personal hygiene, nor about your hair type; they just want a warm scalp and blood to feed on. Your chances of catching pediculosis are tied to close contact with an infested person, nothing else.

Another myth, most likely popularized by the anti-bat lobby. A bat’s vision can vary according to their species, but no bat is 100% blind, though some do better in low-light conditions. Some of them actually have excellent eyesight! The myth of the blind bat comes from their use of echolocation for hunting in the dark, and their sometimes erratic movements when following insects.

This one is a partial truth: dogs can’t see the same color spectrum as humans, but this doesn’t mean their world is black and white. While the human eye has three color-detecting cone cells, dogs have only two, which would make them ‘partially colorblind’. They are unable to distinguish shades of red, green, and orange, which they perceive as yellowish-brown or grayish, but they see other colors, such as blue and yellow.

Toads might not have the loveliest appearance, but they have nothing to do with any wart you might have. Warts in humans are caused by the human papillomavirus (HPV), which is transmitted from person to person. What looks like warts on a toad’s skin are actually glands, used to secrete a toxin that deters predators. This toxin might irritate human skin, so remember to wash your hands if you touch a toad.

Penguins have the reputation of being one of the most faithful animals in the world, even when their partner dies. While some penguin species have a high fidelity rate compared to other animals, none of them mate for life. Some penguin species are known to form long-term bonds with their mates, while others are serial monogamists, but they can actually change partners if they have an unsuccessful mating season.

Ostriches and their alleged head-burying behavior have become a symbol of ignoring one’s problems, but this is based on a myth. This confusion, which some said dates back to Ancient Rome, stems from the ostrich’s shallow nests. When they turn the eggs with their beak, it might look like they are burying their heads in the ground from a distance. When an ostrich feels threatened, they either run away or completely flatten their body to the ground.

Most birds have a weaker sense of smell compared with other animals, so they rely on their vision and hearing to recognize their young. In addition to this, they tend to have strong parental instincts, so human touch and scent are not enough to make them reject their offspring. But, as a rule of thumb, it is always advisable to leave baby birds alone, unless they are injured or in immediate danger.

Camels are able to go for weeks without water, and sometimes even months. This has led to the belief that they store water somewhere in their bodies, mainly in their hump, but this is mainly a myth. What they do store in the hump is fat, which works as an energy reserve when food is scarce, and that can, in certain situations, be metabolized into water. Storing fat in their hump instead of in the rest of their bodies also allows them to keep cool in warmer climates.

The truth about your brain

You won’t believe what happens in your brain while you sleep

Image: Milad Fakurian

Your brain is one of the most powerful and mysterious organs in your body. It controls everything from your thoughts to your emotions and even processes information at lightning speed. But how much do you really know about it? Some long-believed myths about the brain have been debunked, while other surprising facts reveal just how incredible this organ truly is. Get ready to be amazed by these fascinating brain facts!

Image: Natasha Connell

You’ve probably heard this one before, but it’s completely false! While it’s true that not all parts of the brain fire at the same time, imaging studies show that most regions are active throughout the day, even when we sleep.

Your brain is constantly working, controlling bodily functions and emotions, and processing information. So next time someone says you’re only using 10% of your brain, you can confidently tell them that’s just a myth!

Image: Aarón Blanco Tejedor

Here’s a weird fact: While your brain processes pain signals from the rest of your body, it has no pain receptors of its own. This is why surgeons can perform brain surgery on conscious patients without causing them pain.

However, the membranes and tissues surrounding the brain do have pain receptors, which is why headaches and brain injuries can be so excruciating.

Image: Usman Yousaf

How come we have headaches if the brain has no pain receptors? Well, that’s because headaches are triggered by chemical activity in the brain, changes in nerves and blood vessels, and even fluctuating serotonin levels.

In some cases, hormones like estrogen can also play a role, which explains why migraines are more common in women.

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Dreams are proof that your brain never rests! (Warning: this fact can make you feel exhausted.) While you sleep, your limbic system, that is, the part of the brain that deals with emotions, becomes especially active, which is why dreams often feel so intense.

On average, humans experience four to seven dreams per night, even if we don’t always remember them. And what about that scary nightmare about falling? Well, you can thank your amygdala, the brain’s fear center, for that one.

Image: Brett Jordan

Have you ever walked into a room and instantly forgotten what you were after? That’s because short-term memory only lasts about 20-30 seconds! That’s not enough!

Your brain holds a limited amount of information in its active state before deciding whether to store it or discard it. Ironically, we can’t really choose what makes the cut, but we do hope these facts stay with you!

Image: BUDDHI Kumar SHRESTHA

That sharp, icy pain when you eat something too cold? It’s your brain’s way of telling you to slow down! Officially called sphenopalatine ganglioneuralgia, a brain freeze happens when cold food or drinks rapidly chill the blood vessels in your throat, causing them to constrict and then rapidly expand. This sends pain signals to your brain, warning you of the sudden temperature shift. It’s annoying, but it’s actually your body trying to protect itself!

Image: Josh Riemer

You didn’t need us to tell you, but let’s look at the details: The average person has between 12,000 and 60,000 thoughts per day. What’s even more interesting? 95% of those thoughts are the same ones you had yesterday. Is that not surprising enough? Hear this out: 80% of them tend to be negative. That’s because our brains are wired for survival, constantly analyzing risks and potential dangers.

Image: Terry Vlisidis

Even though it only makes up about 2% of your body weight, your brain employs a major quantity of energy! It consumes 20% of your oxygen and blood supply, making it one of the most demanding organs in your body.

If your brain goes without oxygen for just five minutes, brain cells start dying, leading to irreversible damage. This is why deep breathing and cardiovascular exercise are great for brain health!

Image: Alexander Andrews

Do you know that feeling when you hit the back of your head and see stars? That’s because your occipital lobe, which controls vision, is located at the back of your brain. If you get hit there, your brain momentarily misfires, causing flashes of light.

Interestingly, your brain processes vision on the opposite side; while your right brain controls your left eye, your left brain controls your right eye. It’s one of the many ways the brain operates in a complex way.

Image: Rodion Kutsaiev

Believe it or not, your brain generates between 12 and 25 watts of electricity when you’re awake. If you can’t really grasp how powerful that is, check this out: It’s enough to power a small light bulb! Your brain’s electrical activity is what allows neurons to send signals at speeds of up to 260 miles per hour.

Image: Robina Weermeijer

Your brain may be the fattiest organ in your body, consisting of at least 60% fat! This is why consuming healthy fats, like omega-3s and omega-6s present in fish, for example, is essential for brain health.

Healthy fats stabilize brain cell walls, reduce inflammation, and support cognitive function. So go ahead and enjoy that avocado toast, it’s food for your brain!

Image: Robina Weermeijer

It’s not just your memory that fades over time; the brain itself physically shrinks as one gets older. It continues developing until your late 40s, but after that, it slowly decreases in size.

Now, size doesn’t equal intelligence, so a smaller brain doesn’t necessarily mean a less capable one. Staying mentally active, exercising, and eating brain-boosting foods can help keep it in top shape!

Image: Lisa Yount

We often think of cholesterol as bad, but your brain actually depends on it! In fact, 25% of your body’s cholesterol is stored in your brain, where it helps with learning and memory. However, unlike other organs, the brain can’t absorb cholesterol from the blood, it has to produce its own. So, while too much cholesterol in the body can be harmful, the right amount is vital for brain function. At least you can use that as an excuse to get that burger!