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

MY HUSBAND SPENT OUR FAMILY’S SAVINGS FOR A CAR ON A PARIS TRIP FOR HIS MOM — SO I TAUGHT HIM A LESSON ABOUT FINANCES.

The weight of the betrayal settled in my stomach like a cold stone. Three years. Three years of sacrifice, of pinching pennies and foregoing simple pleasures, all for a car that would keep our family safe. And he’d squandered it. On a whim. On a trip to Paris for his mother.

David, bless his oblivious heart, seemed genuinely surprised by my reaction. He’d always been a mama’s boy, and I’d tolerated it, even indulged it, to a point. But this? This was beyond the pale.

“It’s my money too!” he’d protested, his voice rising in that familiar defensive tone. “She deserves it! You can’t put a price on gratitude.”

I’d simply stared at him, my mind reeling. Gratitude? What about gratitude for the sacrifices I’d made, for the countless hours I’d spent juggling work, kids, and household chores? What about gratitude for the safety of our children?

I knew arguing would be futile. He was locked in his own world of justifications, and I wasn’t about to waste my breath. Instead, I retreated, a quiet fury simmering beneath my composed exterior.

Over the next few days, I played the part of the understanding wife. I smiled, nodded, and even helped him pack his mother’s suitcase. I listened patiently as he recounted his mother’s excited phone calls, her plans for sightseeing and shopping.

But beneath the surface, I was plotting. I was determined to teach him a lesson about finances, about responsibility, about the true meaning of family.

First, I contacted his mother. I explained the situation, the crumbling van, the precarious state of our family finances. She was mortified. She’d always been a sensible woman, and she was appalled by her son’s impulsive decision. She offered to pay for the trip herself, but I declined. Instead, I suggested a compromise. She could still go to Paris, but for a shorter period, a weekend getaway rather than a full week. The difference in cost would be returned to our car fund.

Next, I tackled the issue of David’s “my money too” argument. I opened a joint account, separate from our everyday expenses, and deposited the remaining car fund, along with the money his mother had returned. I then created a detailed budget, outlining our household expenses, including the cost of a new (used) car. I presented it to David, highlighting the glaring discrepancy between our needs and his impulsive spending.

I also introduced him to the concept of “family meetings.” Every Sunday, we would sit down together, discuss our finances, and make joint decisions about spending. The kids were included, too, learning about the value of money and the importance of saving.

Finally, I decided to address the issue of his mother’s constant demands. I didn’t want to create a rift between them, but I needed to establish boundaries. I suggested that we set aside a small portion of our budget for gifts and experiences for both our families, to be agreed upon by both of us.

The changes weren’t immediate. David grumbled about the budget, about the “unnecessary” family meetings. But slowly, he began to understand. He started to appreciate the sacrifices I’d made, the careful planning that kept our family afloat. He even started to enjoy the family meetings, seeing them as an opportunity to connect with the kids and make joint decisions.

The day we drove our newly purchased (used) car home, David looked at me, his eyes filled with a mixture of regret and gratitude. “Thank you,” he said, his voice sincere. “For teaching me.”

I smiled. “We’re a team, David,” I said. “And teams work together.”

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