Biology - Briefly

“The preservation of health is a duty. Few seem conscious that there is such a thing as physical morality.” - Herbert Spencer

Some interesting fun facts, trivias about our body – courtesy of Facebook pages ‘Inside Biology’, ‘Human Scope’, ’ etc… However, I do not know if they are true. Some of them sound really incredible.

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The tiny uvula has a Bigger job than you think. That tiny piece hanging at the back of your throat isn’t useless. The uvula helps with swallowing, keeps food and liquid from moving into your nasal passage, and plays a role in speech and throat function.

You probably never think about it — until something goes wrong. Your body has countless small structures doing important jobs every second. - A Facebook post by 'Human Scope'

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OLIGODENDROCYTES: The tiny cells that help your brain send signals faster.

Deep inside your brain and spinal cord, oligodendrocytes create myelin — the protective insulation wrapped around nerve fibers. Myelin helps electrical signals travel rapidly and efficiently. Without healthy myelin, communication between nerve cells can slow down or become disrupted. These microscopic cells support movement, coordination, balance, and brain function every second. You don’t notice them. But your nervous system depends on them. They don’t make the signal. They make sure the signal gets through. - A Facebook post by 'Human Scope'

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Amniotic fluid is more than a protective cushion. It helps maintain a stable environment for the developing fetus, allows movement, supports musculoskeletal development, and contributes to temperature regulation. The fetus also swallows and inhales small amounts as its lungs and digestive system develop. - A Facebook post by 'Inside Biology'

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This tiny part of your brain is your body's master clock.

Deep inside your brain is a tiny cluster of cells called the suprachiasmatic nucleus (SCN). It helps regulate your body’s 24-hour circadian rhythm, including your sleep-wake cycle and daily biological timing.

The surprising part? It responds to light and helps synchronize your body’s internal clock every single day.

Small structure. Massive influence. - A Facebook post by 'Human Scope'

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86 billion neurons constantly communicate through an incredibly complex network of electrical and chemical signals.

Their activity is not perfectly synchronized. Instead, different brain regions coordinate dynamically, allowing perception, memory, thought and conscious experience to emerge. - A Facebook post by 'Insidee Biology'

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The hidden structures inside your nose you never notice. Inside your nose are three curved structures called turbinates — and they’re doing far more than you think. They help warm and humidify the air you breathe, trap particles, regulate airflow, and support your sense of smell. When they swell, your nose can feel completely blocked.

Tiny structures. Huge job. And you probably never knew they were there. - A Facebook post by 'Human Scope'

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ARYTENOID CARTILAGES: The tiny structures controlling your voice.

Hidden deep inside your larynx are two tiny pyramid-shaped cartilages called the arytenoid cartilages. They help move and position your vocal folds — opening them for breathing and bringing them together for speech. Every word you speak depends on incredibly precise movements happening inside your throat.

Tiny structures. Massive role. - A Facebook post by 'Human Scope'

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This is Wwat your lungs look like fully inflated.

Ever wondered what your lungs actually look like when they’re filled with air?

Your lungs expand when you breathe in, filling with air so oxygen can move into your bloodstream. Deep inside are hundreds of millions of tiny air sacs called alveoli, where this gas exchange happens.

Every breath is a reminder of how complex your body really is. - A Facebook post by 'Human Scope'

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New Development On The Science Front

“Science is not about building a body of known ‘facts’. It is a method for asking awkward questions and subjecting them to a reality-check, thus avoiding the human tendency to believe whatever makes us feel good.” - Terry Pratchett

Interesting developments on the Science front – courtesy of Facebook pages, ‘Science Sphere’, ‘Hidden Power’, ‘’, ‘Human Scope’, ‘Astrophilesz’, etc… Although trials, experiments and studies show promise, I guess it will be some time yet before they are a reality.

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This tiny capsule is actually a camera — and you can swallow it.

Capsule endoscopy allows doctors to examine parts of the digestive tract, especially the small intestine, using a pill-sized camera. After being swallowed, the capsule travels naturally through the digestive system while capturing thousands of images.

Those images are transmitted to a recorder worn by the patient and later reviewed by a healthcare professional. Capsule endoscopy can help investigate problems such as unexplained gastrointestinal bleeding, inflammation, and certain small-intestinal abnormalities.

No traditional endoscope traveling through the entire small intestine — the camera makes the journey itself.

Modern medicine packed into something barely larger than a pill. – A Facebook post by ‘HumanScope’

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Modern HIV treatment has transformed what was once usually a fatal infection into a manageable chronic condition for millions of people.

Antiretroviral therapy, or ART, works by blocking different stages of HIV’s replication cycle. When taken consistently, treatment can suppress the amount of virus in the blood until standard tests can no longer detect it. This is called having an undetectable viral load.

The impact goes beyond protecting the person receiving treatment. Extensive evidence has established U=U: Undetectable = Untransmittable. A person with HIV who maintains an undetectable viral load has effectively zero risk of sexually transmitting HIV to their partner.

Treatment also protects the immune system by allowing CD4 cells to recover. Starting ART early and maintaining viral suppression means many people with HIV can now have a life expectancy approaching that of people without HIV, although outcomes still depend on factors such as access to care, other health conditions and how early treatment begins.

But “undetectable” does not mean cured. HIV can remain hidden in long-lived cellular reservoirs, so stopping treatment generally allows the virus to rebound. This is one reason researchers are still pursuing vaccines and treatments capable of eliminating or permanently controlling these reservoirs.

The transformation is remarkable: an HIV diagnosis once carried a very different prognosis. Today, with early diagnosis and effective treatment, many people can live long, healthy lives and cannot sexually transmit the virus while they remain durably undetectable. – A Facebook post by ‘Astrophilesz’

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The voice inside your head is not just an abstract thought. Your brain produces measurable patterns of activity while you silently talk to yourself.

Brain-imaging studies show that inner speech recruits many of the same networks involved in speaking and hearing language. Areas involved in speech planning, motor control and auditory processing can become active even though no sound leaves your mouth.

Scientists have even recorded signals from the motor cortex and decoded words people were only imagining saying. Interestingly, imagined speech produced neural patterns similar to attempted spoken speech, although the signals were generally weaker.

Self-talk also appears to be deeply connected with how we regulate ourselves. Inner speech can help organize thoughts, rehearse information, solve problems, evaluate our own behavior and guide future actions. It is essentially one of the tools the brain uses to think about itself.

The form of that inner conversation matters too. Imagining an internal dialogue recruits a broader brain network than a simple internal monologue, including regions involved in understanding other people’s perspectives and mental states.

This doesn’t mean every thought magically rewires individual brain cells, but it does mean the words you repeatedly generate internally are real biological events occurring across neural networks. Your inner voice may be silent to everyone else, but your brain is listening. – A Facebook post by ‘Astrophilesz’

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Scientists are trying to turn bacteria into living cancer-fighting machines.

The idea uses Clostridium sporogenes, a soil bacterium that grows only where there is no oxygen.

That matters because the cores of many solid tumors are oxygen-starved, full of nutrients, and difficult for standard treatments to reach.

Researchers engineered this bacterium with a genetic “quorum sensing” circuit — a system that lets bacteria respond only when enough of them have gathered together.

In theory, this could help bacteria switch on survival or treatment-related genes inside tumors, while staying controlled elsewhere in the body. But this is still early synthetic biology.

The new study tested the genetic circuit using a fluorescent reporter, not cancer killing in patients.

The next challenge is to combine this control system with tumor-targeting bacteria and test it in preclinical cancer models. – A Facebook post by ‘Science Sphere’

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Every living cell in your body emits what scientists call biophotons, particles of light produced by real biological processes including DNA activity, mitochondria, and the oxidation of proteins. This is not a metaphor or a spiritual claim. It has been measured in laboratories since Russian scientist Alexander Gurwitsch first observed it in the 1920s, and confirmed repeatedly since German physicist Fritz-Albert Popp developed precision detection equipment in the 1970s. The emissions are real. They are thousands of times dimmer than a firefly, but they are there.

Research has found that the brain emits significantly more biophotons than other tissues, and that emissions increase during neural activity. There is also emerging evidence linking biophoton output to oxidative stress, which is documented in depression, anxiety, and other mental health conditions. This is an active and still-developing field of science, but the foundation is solid: you are a body of light in a literal, measurable, biological sense. – A Facebook post by ‘Hidden Power’

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Shangri-la Bangkok

For my recent short trip to Bangkok, I stayed at the Shangri-la hotel. I think it was my first time staying in a 5-star hotel. My friend was able to get a discounted price for the rooms. So we decided to pamper ourselves.

The Shangri-la Bangkok is a luxury 5-star riverfront hotel on the banks of the Chao Phraya River in Bang Rak. Often called the river of Kings’, Chao Phraya River is the main waterway flowing through Bangkok. The hotel is a stone’s throw away from the Saphan Taksin BTS Skytrain, and the Sathorn Pier.

Here are some photos taken from the hotel.

A nice swimming pool.

Buildings across the river.

The hotel provides free ferry rides across the river to ICONSIAM, a luxury mega-mall.

Views from the hotel at night. Ferries and cruises ply the river.

There was some rain on the third day. We were taking a break in the room when we saw this rainbow.

The weather was on our side. There was none of the heavy rain reported a week prior to our visit. Just a little shower on our third day in Bangkok.

You can click on the picture for a better view.

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The World Of Plants

“Learning makes a man fit company for himself.” - Thomas Fuller

“To be conscious that you are ignorant is a great step to knowledge.” - Benjamin Disraeli

A peek into the world of plants. Here are some trivia, and fun facts about plants, courtesy of Facebook pages ‘Plant Care Today’ David Attenborough, etc… However, I do not know if they are true. Some of them sound really incredible.

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You know that moment when you realize a plant you've been growing has been doing something extraordinary the whole time, and nobody thought to mention it?

That's staghorn ferns for you. Up in the Australian rainforest canopy, sixty feet above the forest floor, these plants decided they didn't need dirt at all. They found something better: the architecture of the trees themselves.

Here's what's happening up there. The fern wraps itself around a branch with what look like flat, shield-shaped leaves pressed tight against the bark. But these aren't leaves in the usual sense. They're specialized fronds that act like construction workers and water engineers rolled into one. As they grow, they form a basket around the branch, overlapping and hardening into layers. Dead leaves fall from the canopy above. Rain washes down bits of bark and insect debris. All of it gets caught in that basket the fern built.

And then the magic starts.

Those shield fronds hold everything in place while it breaks down. The fern is literally manufacturing soil in midair, creating its own growing medium from whatever the forest drops. Meanwhile, the fern sends out those dramatic, antler-shaped fronds that everyone recognizes. Those are the feeding fronds, the ones doing photosynthesis. But it's the shields doing the heavy lifting, the invisible work that makes everything else possible.

The water system is just as clever. When rain hits those upright shield fronds, it doesn't just run off. The shape funnels every drop down toward the center where the fern's roots wait. There's a absorption zone right at the base where the plant pulls in moisture. Nothing wasted. In a environment where water comes and goes with the weather, that's the difference between thriving and shriveling.

This is why staghorn ferns look so odd when you see them mounted on boards or growing in hanging baskets. We're trying to give them what they already engineered for themselves over millions of years. The sphagnum moss in a wire basket? That's our attempt to recreate their self-made soil. The wooden mount? Our version of tree bark. We're copying their homework, and honestly, they were already brilliant at it.

When you grow one indoors, you're not just keeping a houseplant. You're watching a demonstration of evolutionary genius. This plant looked at the crowded rainforest floor, all those ferns and shrubs competing for space and light, and said no thank you. It headed straight up into the canopy and rewrote the rules about what plants need to survive.

The most wonderful part is how simple their system is once you see it. Catch water. Catch debris. Build soil. Feed yourself. It's elegant and self-contained, like they carry their own little ecosystem wherever they anchor.

Next time you walk past a staghorn fern, take a second look at those shield fronds pressed against whatever they're mounted on. You're looking at a plant that solved the problem of living on air, one collected raindrop and decomposing leaf at a time. They've been perfecting this system since before humans figured out agriculture, and they're still teaching us things about what's possible when you stop assuming plants need ground beneath them. – A Facebook post by ‘Plant Care Today’

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Your lemon tree is lying to itself — and those wild vertical shoots are proof it's in full survival mode.

Here's what's actually happening: When your tree senses stress (irregular watering, root disturbance, or even a hard pruning), it activates ancient DNA and throws up "water sprouts" at triple the speed of normal growth. These aren't fruiting branches. They're botanical panic—coded for escape, not lemons. Most sprout from below the graft union, meaning they're genetically different from the variety you planted. They'll never give you the Meyer lemons you're dreaming of, just tough, bitter fruit the rootstock was bred to survive with.

The wildest part? These shoots are incredible thieves. They pull nitrogen, water, and carbohydrates away from your actual fruit-bearing branches. A single vigorous water sprout can siphon resources meant to ripen a dozen lemons. The tree genuinely believes it's dying and must reproduce fast — so it abandons the "expensive" work of making fruit.

Your move is simple and powerful: prune them flush to the trunk or soil line. Use clean shears, cut close, don't leave stubs. Within weeks, you'll notice energy returning to the canopy. More flower buds. Healthier fruit set. You're not just shaping the tree — you're calming it down, telling it in the only language it understands: *You're safe. You can fruit again.*

Have you spotted these panic shoots on your citrus? What triggered them? – A Facebook post by ‘Plant Care Today’

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Ever wonder why your "drought-loving" snake plant can live in a jar of water indefinitely? Because it's secretly growing a completely different root system underwater.

When you propagate a snake plant in water, something wild happens at the cellular level. Those new roots aren't just tolerating the water — they're rebuilding themselves for it. Thinner cell walls for faster nutrient absorption. Enlarged air pockets called aerenchyma that store oxygen. Specialized tissues that can pull dissolved oxygen straight from the water molecules themselves.

It's botanical shapeshifting. The same plant that garden centers tell you needs "excellent drainage" suddenly thrives in permanent submersion.

Here's the secret: snake plants are succulents. Those thick, architectural leaves store enough resources to fuel this dramatic transformation. While the plant regrows its entire root architecture for aquatic life, the leaves act as a backup battery. No soil required. No drainage holes needed. Just clean water and indirect light.

The adaptation usually takes 2-3 weeks. After that? You've got water roots that often grow faster and healthier than their soil counterparts. Change the water every couple weeks, and your snake plant becomes a living science experiment on your windowsill.

Have you ever tried growing snake plants in water, or does the idea still feel too risky? – A Facebook post by ‘Plant Care Today’

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Each plantlet that dangles from a spider plant is essentially a clone, carrying identical genetics and an already-formed root system. The parent plant invests tremendous energy into creating these aerial offspring, sending them out on long stolons like botanical umbilical cords. What appears to be random dangling is actually strategic placement — each plantlet positions itself to catch light and eventually find soil.

The parent keeps feeding them until they establish independence. When you snip a plantlet and pot it, you are completing a process the plant designed. The timing matters less than the readiness — those tiny white roots signal the plantlet has everything it needs to thrive alone. One plant becomes a living library of itself, each copy carrying forward the same resilience that made the original successful. – A Facebook post by ‘Plant Care Today’

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A powerful lightning strike peeled back part of this tree's outer layers, revealing some of the intricate internal structures responsible for transporting water and nutrients throughout the plant.

Trees rely on a specialized vascular system made up of xylem and phloem. The xylem carries water and dissolved minerals from the roots to the leaves, while the phloem distributes sugars produced during photosynthesis to the rest of the tree.

One fascinating fact is that trees have neither muscles nor a nervous system. Instead, they depend on natural physical processes such as transpiration, water pressure within cells, and the opening and closing of stomata in their leaves to regulate water movement and support vital functions.

Nature's engineering is remarkably complex, turning every tree into a living network that quietly sustains itself from root to crown. – A Facebook post by David Attenborough

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My Bangkok Trip

My three nights, four days trip to Bangkok last week turned out well. It was my maiden trip with three other mates. We got along well, had a great time, and we are still friends.

It was a ‘free and easy’ trip, a short break. There was a lot of eating, and window shopping. We did take time to explore their Chinatown and the city center.

Bangkok is the capital and largest city of Thailand, serving as the nation's primary cultural, commercial, and political center. It is famous for its vibrant mix of ornate royal temples, buzzing street food culture, massive shopping malls, and lively nightlife. It also has the unsavoury name of ‘Sin City’ because of its massive, world-famous nightlife and extensive sex tourism industry.

Bangkok is busy, noisy, and there is lots of traffic. Crossing the road is a challenge. The motorists don’t pay very much attention to you. They zapped past you and they will not wait for you at the pedestrian crossing. You just step onto the road and hope that someone doesn’t run you down.

You can travel on the BTS Skytrain and MRT – the city’s rapid mass transit systems to bypass the street traffic. You can also travel on the ferries and river taxis to get around.

Here are some photos from my visit.

Shangri-la, where we stayed, sits on top of a slope. Down the slope is this. The contrast between old and new is quite glaring.

It must be quite a job sorting out which wire goes where.

The city center.

We were walking around the city center when we found ourselves walking into a religious celebration. The road was jam packed. We had to inch along.

After a day’s walking it’s time for some food to replenish our energy.

A night market.

On the second day, we took a ferry to Chinatown.

A Chinese temple in Chinatown

You can click on the picture for a better view.

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Insects

"All you've got to do is own up to your ignorance honestly, and you'll find people who are eager to fill your head with information." - Walt Disney

Some interesting fun facts about insects – courtesy of Facebook pages ‘All About Animals’, ‘Science Sparks’, ‘Mr Scientific’ etc… However, I do not know if they are true. Some of them sound really incredible.

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This is the SCORPION-TAILED SPIDER - The Spider With a Strange Tail!

Found in tropical forests, the Scorpion-tailed Spider is an incredible arachnid known for its unusual tail-like abdomen that makes it look like a tiny scorpion.

Its bright green, leaf-like body helps it blend into its surroundings, while its long, hairy legs allow it to move carefully across leaves and vegetation.

Despite its strange appearance, this spider is a fascinating example of how nature creates unique adaptations for survival.

Did you know: Its unusual tail-like structure is one of the most distinctive features that makes this spider so remarkable! – A Facebook post by ‘All About Animals’

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The dangerous part of a kissing bug bite is not the bite itself. It is what the insect leaves behind afterward. These nighttime blood-feeders often bite exposed skin around the face, then defecate near the feeding site.

If infected feces are rubbed into the bite, eye, or mouth, *Trypanosoma cruzi* can enter the body and cause Chagas disease. The acute infection often causes mild symptoms or none at all. Then comes the unsettling delay. Ten to 30 years later, up to one-third of infected people can develop heart damage, including arrhythmias, cardiomyopathy, heart failure, or sudden death.

Around 8 million people worldwide carry the parasite.

A tiny nighttime encounter can leave consequences measured in decades. – A Facebook post

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In the scorching dunes of the Namib Desert lives a spider with one of the most spectacular escape tricks in all of nature. The golden wheel spider spends its days hidden in silk-lined burrows dug into the sand, but it has a terrifying enemy: the parasitic pompilid wasp.

This wasp hunts the spider relentlessly, and if it catches one, it paralyzes the spider with a sting and lays an egg on its body, so that the wasp's larva can slowly devour the still-living spider from the inside.

Faced with such a gruesome fate, the golden wheel spider evolved a jaw-dropping getaway. When cornered near a dune, it flips onto its side, tucks all eight legs inward into a tight ball, and transforms its own body into a living wheel. Then it launches itself down the steep slope, cartwheeling and tumbling at an astonishing 44 rotations every second, spinning down the sand far faster than it could ever run.

Rolling at speeds that leave the wasp hopelessly behind, the spider can cover a distance in seconds that would take enormous effort to walk. It is a full-body somersault escape so effective that engineers have even studied it while designing robots that can roll across difficult terrain.

In the deadly heat of the Namib, survival sometimes means becoming a wheel. – A Facebook post by ‘Science Sparks’

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The human botfly has one of the most cunning reproductive strategies in nature. Rather than approaching a host itself, the adult female catches a mosquito or other biting insect in mid-flight and glues her eggs onto its body, then releases it unharmed.

When that mosquito later lands on a warm-blooded animal or person to feed, the sudden body heat triggers the botfly eggs to hatch instantly. The tiny larva then drops onto the skin and burrows in, growing inside the host for weeks before eventually emerging.

It is a parasite that turns another insect into its personal delivery service. – A Facebook post by ‘Science Sparks’

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In several species of nursery web spiders and gift giving spiders, males present females with a prey item wrapped in silk before mating. Scientists call these "nuptial gifts."

The gift serves two purposes. First, it provides the female with food, which can improve her reproductive success. Second, it keeps her occupied. While she focuses on unwrapping and eating the gift, the male has a safer opportunity to mate without being attacked or chased away.

Not all males are equally generous.

Researchers have found that some males cheat by wrapping worthless objects such as plant fragments, empty insect shells, or small stones in silk. From the outside, the fake gift looks just as appealing as a genuine meal.

The deception often works, at least initially. The female may begin inspecting the package while the male mates with her.

However, if she discovers the trick too quickly, the mating can be cut short, reducing the male's chances of passing on his genes. – A Facebook post by ‘Mr Scientic’

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Cheesy Monday

Laugh when you can. A day without a laugh is a day wasted. If, for whatever reason, you find it difficult to laugh at the moment, maybe the following jokes will help to bring on a chuckle or two, or put a smile on your face at least.

I know, they are cheesy. But hey, I welcome anything that makes me laugh. I hope you do too. Laugh and the world laugh with you. Cry and you cry alone.

May your days be filled with laughter.

Image created on Canva

Student: Sir, I have a complaint. I do not believe I deserve a zero on this exam.
Professor: Neither do I, but it is the lowest grade I can give.

Doctor: I have some good news and some bad news.
Patient: Give me the good news.
Doctor: They are going to name a disease after you.

A: Artificial intelligence cannot take your job if your job has never needed intelligence.
B: I don’t understand.
A: You’re safe!

A: Am I pretty or ugly?
B: You’re both
A: What do you even mean?
B: You are pretty ugly.

A: My teeth are turning yellow.
B: Do you smoke or drink coffee?
A: I drink it.

A: I once knew a man with one eye called Steve.
B: What do you think he would’ve called the other one?

A: I just fell off a 30 ft ladder in your orchard.
B: OMG, are you okay?
A: Oh yes, luckily I was just on the first step.

A: You know, running into debt isn’t all that bad.
B: You are right. It’s running into creditors that really hurts!

Image created on Canva

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Thank you for stopping by. Follow me if you find my posts interesting. If you know of anyone who might appreciate them, do recommend the blog to them. Cheers!