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 was determined to poison the raccoons that kept invading our backyard, but what they pulled from our trash left me completely shocked

“I’m telling you, we need better locks for the cans,” I suggested one morning as Kyle angrily watched me scoop up the scattered garbage. “Maybe some chicken wire around the garden too. My sister Jane says that worked for them.”

“I don’t care what your sister says. What we need is to get rid of them. Permanently.”

I remembered when we first met, how his spontaneity had seemed charming. Now, at forty, that impulsiveness had morphed into an iron-fisted need to control everything, including me.

“Kyle, please. Can’t we try the peaceful way first?”

He jabbed a finger at me. “You always do this, Josie. Always trying to make everything complicated when there’s a simple solution right in front of us.”

“Simple doesn’t always mean right.”

He slammed the broom against the side of the house. “What was that?”

I flinched. “Nothing. I’ll look into better trash cans today.”

That weekend, I found Kyle in the garage, assembling something metallic.

“What’s that?” I asked, though I already knew. Animal traps.

He didn’t look up. “Insurance. These smart traps will catch anything that comes near our trash.”

“Kyle, please. They could hurt them.”

He slammed down his screwdriver. “That’s the point! I’m so sick of you defending these disease-carrying vermin. You act like they’re some kind of pets.”

“They’re not pets, but they don’t deserve to suffer. Maybe if we just—”

“Maybe if we just what, Josie? Let them take over? Build them a guest house while we’re at it? I’ve had it with your bleeding heart routine.”

I felt tears welling up but forced them back. “Why does everything have to be solved with violence? They’re just hungry animals, Kyle.”

He stood up, his face red. “You want to know what I think? I think you care more about these pests than our home. Than me.”

“That’s not fair.”

“Isn’t it? Every time I try to solve a problem, you fight me. The raccoons, the neighbor’s dog that keeps barking all night, even that group of teens that hangs out by our fence.”

“Those are all living beings, Kyle. Not problems to be ‘solved.’”

“This is my house!” he yelled, making me jump. “I work every day to pay for it, to keep it nice, and I’m not going to let some animals destroy it while my stupid wife takes their side!”

When the raccoons started showing up again this spring, Kyle completely lost it.

That evening, I was folding laundry when he stormed in, waving a piece of paper and grinning like he’d won the lottery.

“You’ll never guess what I found at the hardware store. Industrial-grade pest control. Guaranteed to solve our little problem.”

I took the paper. It was a receipt for animal traps and some kind of poison. My hands started trembling.

“Kyle, you can’t be serious. That stuff could kill them!”

He snatched the receipt back. “That’s the point, Josie. God, sometimes I think you’re being dense on purpose.”

“But what if neighborhood cats get into it? Or someone’s dog? We could get in trouble.”

Kyle’s face darkened. “I’ve made up my mind. The raccoons are gone by the end of the week, one way or another.”

I spent that night tossing and turning, my mind racing. When did the man I married become someone who could so casually talk about killing innocent creatures?

I thought about calling Jane, but I already knew what she’d say. She’d never liked Kyle and always said there was something off about him. Maybe I should have listened.

The breaking point came on a quiet Tuesday night two days later. I was reading in bed when I heard rustling outside. Peering through the window, I saw one of the trash cans had been knocked over again.

I slipped on my robe and grabbed a flashlight. As I approached the mess, something caught my eye. It was a black garbage bag, partially open, with something moving inside.

My hands trembled as I reached for it. “Oh no. No, no, no…”

Inside were three tiny raccoon babies, barely old enough to open their eyes. They were squirming weakly.

“Kyle!” I screamed, cradling the bag close. “Kyle, get out here right now!”

He appeared on the porch, looking annoyed. “What are you yelling about? It’s the middle of the night, you crazy woman!”

“Did you do this?” I held up the bag. “Did you throw away baby animals like they were garbage?”

He shrugged. “They’re pests. I’m handling it.”

“Handling it? They’ll die!”

“That’s the point, Josie. Jesus, why are you so naive? They’re just raccoons!”

“Just raccoons? They’re babies, Kyle! Living, breathing creatures that feel pain and fear. How would you feel if someone threw you away to die?”

He laughed, a cold sound that made me shiver. “Now you’re comparing me to a raccoon? How dare you, Josie?”

“I’m comparing you to someone with empathy, and you’re coming up short.”

Kyle stepped closer, his voice a chilling growl that made my blood run cold. “You know what your problem is? You’re soft. Always have been. The world isn’t some fairy tale where we all just get along. Sometimes you have to be tough.”

“Tough? There’s nothing tough about hurting something weaker than you. That’s just cruel.”

I looked at him and wondered how I’d never seen the cruelty that had always been there.

The next morning, I called every wildlife rescue in the area until I found one that could help. A kind woman named Marla showed me how to feed the raccoon kits with a tiny bottle.

“You’re doing great,” she assured me, watching as I cradled the smallest one. “They’re lucky you found them when you did.”

As I watched the kit suckle eagerly, tears rolled down my cheeks. “I just don’t understand how someone could be so cruel.”

Marla squeezed my shoulder. “Sometimes the animals we save end up saving us too.”

That evening, I found Kyle’s journal and a detailed plan for dealing with the “raccoon infestation.” It included poison locations, trap placements, and even a schedule. The methodical cruelty of it made me sick.

When Jane arrived, she saw the journal in my hands.

“Still think I’m overreacting?” I asked, showing her the pages.

She shook her head. “Josie, this isn’t about raccoons anymore. Maybe it never was.”

“I know,” I whispered. “I think I’ve always known.”

The divorce papers were served a week later. Kyle didn’t seem surprised, just angry. As always.

“You’re really throwing me out over some pests?” he spat as he packed his things into boxes.

I stood my ground in the doorway of what was now my house alone. “No, Kyle. I’m ending this because of who you’ve become. Who you’ve always been, maybe, and I just didn’t want to see it.”

Days turned into weeks. The raccoon kits grew stronger.

The smallest one was shy and always hid behind his siblings. The middle one was curious about everything. And the biggest was protective, always watching out for the others.

Marla helped me release them back into the wild when they were ready. As we watched them toddle toward the treeline, I saw movement in the bushes. There, watching us, was their mother.

“Look,” Marla whispered. “She came back for them.”

The mother raccoon chittered softly, and her babies ran to her. Before disappearing into the forest, she turned and looked right at me. In that instance, I felt a connection to something larger than myself. Compassion.

“You know,” Marla said, “there’s an opening at the rescue center if you’re interested. We could use someone with your kindness.”

I smiled, feeling lighter than I had in years. “I’d like that.”

“You know, Josie, you can tell a lot about a person by how they treat animals. They’re like a mirror that reflects our true selves.”

Looking back, I realized the raccoons hadn’t just been victims of Kyle’s cruelty. They’d been my wake-up call. Sometimes it takes seeing someone else’s vulnerability to recognize your own.

As the raccoons disappeared into the trees, I took a deep breath and felt ready for a fresh start. I knew I deserved better, and that someday, I’d find the right person who saw the world with the same compassion I did.

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