10 Curiosities You Probably Didn’t Learn in Biology Class

The world is a big, wonderful place full of facts we never thought possible. For instance, if a pregnant mouse has a sudden medical issue, the fetus will send stem cells to heal the mother, increasing its chances of survival as well. Fetal stem cells have been found in human mothers as well, dubbed by science as microchimerism.

Bright Side dug up some more marvelous facts about nature and its creations, upholding our yearly resolutions to spread knowledge and joy.

1. The heart slows when your face touches water.

As mammals, we can’t breathe underwater, so as part of the mammalian dive reflex, our heart rate goes down in the water — more so if we go underwater. Even splashing the face with water makes the heart slow down, making it a great way to calm down.

2. Fungus can break down plastic in weeks.

It is said that in the future, there may be more plastic in the ocean than fish. This is why the plastic-eating fungus is great news, and there are around 50 new species of such fungi discovered already. One of the fungi discovered can digest plastic within 2 months, so there’s hope for us yet.

3. Newborn babies can support their own weight.

Newborn babies are strong — strong enough to be able to grasp things in their tiny fists and even support their weight as shown by an experiment done in the nineteenth centuryLouis Robinson witnessed babies able to hang from a walking stick, from 10 seconds to 2 minutes and 35 seconds.

4. Koala fingerprints have been mistaken for human ones.

We’ve been told that our fingerprints are unique, and they are. But the fact remains that even though we share a common ancestor with the koala that was alive 100 million years ago, koala fingerprints look very similar to human fingerprints, as do chimpanzee fingerprints for that matter.

5. Snails can sleep for 3 years.

If you thought bears had it good with hibernation, meet the snail. Snails can sleep rather than hibernate for 3 years at a time without needing food. Of course, this is with some snail species, not all of them. Meanwhile, bears usually hibernate for just 4-8 months.

6. Sloths need 2 weeks to digest food.

Sloths don’t only move in slow motion — even their insides move slowly, ostensibly to preserve energy, which is why a sloth’s digestive system takes 2 weeks to process the food it ate. Plus, most of what it eats is indigestible, giving it very little energy from each slowly chewed mouthful.

On the other end of the spectrum lies the shrew, whose digestion takes mere minutes and is done so fast, not much of it is fully digested. This is the reason why shrews eat their own feces. They can die of starvation in a matter of hours if they don’t eat.

7. Your brain ignores seeing your nose.

We can see our nose all the time, it’s just that the brain tends to ignore it because it’s a constant visual stimulus. It’s the same with people who wear glasses. After a while, they simply stop noticing them.

8. Your forearm is the same length as your foot.

If you don’t have the time to try on a shoe, measure it from your elbow crease to your wrist. If it fits or is just a little smaller, it would fit your foot because the length of your forearm is the same as your foot. And this is just one of many human body ratios that are a marvel in themselves, including the fact that your femur bone is one-quarter your height.

9. You can “see” your white blood cells.

If you look up at a cloudless, bright blue sky and see some wiggly things at the periphery of your vision, you’ve just experienced the blue field entoptic phenomenon. The wiggly things are white blood cells moving in the fine blood vessels moving in front of the retina, at the back of the eye.

10. Human beings have striped skin, but only cats can see it.

Human beings have stripes and patterns on the skin too, and they are called Lines of Blaschko, name eponymously by the scientist who discovered them, Dr. Alfred Blaschko. These are closer to tiger stripes, forming more of a V-pattern fanning out from the center to the extremities. These lines are visible under UV light, a spectrum that cats can see too, which is why cats can see you as a striped being as well.

Which of these facts turned out to be a revelation for you? Share your extreme nature facts with us and blow us away.

Preview photo credit Shutterstock.comShutterstock.com

I COMPLAINED ABOUT MY NEW NEIGHBORS’ HORRIBLE FOUNTAIN & RECEIVED A THREATENING NOTE FROM THEM.

The quietude of Elm Street, once a symphony of birdsong and gentle laughter, had been shattered. The arrival of the new neighbors, the Morlocks, had thrown the idyllic tranquility of their little community into chaos.

Initially, I had tried to be welcoming. A plate of freshly baked cookies, a warm smile, a friendly “Welcome to the neighborhood!” But my overture had been met with a chilling silence. The woman who answered the door, pale and gaunt, had regarded me with a suspicion that bordered on paranoia. “Ew, it smells awful,” she had muttered, her eyes darting nervously around as if I were some sort of disease.

Then came the fountain. A monstrosity of wrought iron and gargoyles, it stood imposingly in their yard, a constant, jarring presence. The incessant gurgling and splashing, day and night, had become the soundtrack to our lives. Sleep became elusive, replaced by the monotonous drone of the water.

The neighborhood, once a haven of peace and camaraderie, was now a battleground. Tempers flared. Arguments erupted at the weekly community meetings. Finally, a vote was taken – a unanimous decision to request the removal of the fountain.

And so, the unenviable task of filing the official complaint fell to me. I, the self-proclaimed peacemaker, the neighborhood’s unofficial ambassador of goodwill, was now the bearer of bad tidings.

That evening, as I returned home, a small, ominous package lay on my doorstep. No return address. A shiver ran down my spine.

Inside, a single sheet of paper, scrawled with menacing handwriting:

“I KNOW YOUR SECRET. YOU WILL BE POLITE TO YOUR NEW NEIGHBORS, OR EVERYONE WILL KNOW.”

Fear, cold and clammy, gripped me. Who was it? The Morlocks? Or someone else, someone watching, someone waiting for the right moment to strike?

The following days were a blur of paranoia and unease. I checked every window and door lock multiple times a night. I slept with the light on, the faintest sound sending shivers down my spine. My once peaceful neighborhood had transformed into a place of fear and suspicion.

The police, after much persuasion, agreed to investigate. They questioned the Morlocks, of course, but they denied any involvement. The woman, her face gaunt and drawn, maintained her innocence, claiming she was simply trying to enjoy her own property.

The investigation yielded nothing. No fingerprints, no witnesses, no concrete evidence. The threat remained, a chilling reminder of the darkness that lurked beneath the surface of our seemingly idyllic community.

I started carrying a small can of pepper spray, my hand instinctively reaching for it at every rustle of leaves, every unfamiliar sound. I avoided going out alone at night, my days filled with a constant sense of unease.

The incident had changed me. The once friendly, outgoing neighbor was now withdrawn, suspicious, constantly scanning the shadows for signs of danger. The peace and tranquility of Elm Street, shattered by the arrival of the Morlocks, had been replaced by a chilling sense of fear and uncertainty.

And the fountain, that monstrous, discordant symbol of their arrival, continued to spew its icy water, a constant reminder of the darkness that had seeped into the heart of their once idyllic community.I COMPLAINED ABOUT MY NEW NEIGHBORS’ HORRIBLE FOUNTAIN & RECEIVED A THREATENING NOTE FROM THEM.

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