This weeks links

 

Here are this week’s links

https://jamfn.blogspot.com/2026/10/sharing-my-world.html

https://jamfn.blogspot.com/2026/10/hodgepodge-here-and-there.html

https://jamfn.blogspot.com/2026/10/sunday-stealing-on-monday.html

 

 

 

 

 

 

 

 

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Plant-Eating Dinosaurs

This week we will look at plant-eating dinosaurs, also called herbivores, they were among the most varied animals of the prehistoric world. They ranged from small, quick dinosaurs that browsed close to the ground to enormous, long-necked giants that could reach leaves high in the trees. Instead of hunting other animals, they relied mainly on plants for food.

Some of the best-known plant eaters included Triceratops, with its three horns and broad neck frill; Stegosaurus, recognised by the plates along its back and spikes on its tail; and Brachiosaurus, whose long neck helped it feed from tall vegetation. Duck-billed dinosaurs, known as hadrosaurs, had batteries of tightly packed teeth that were well suited to grinding tough plant material.

Different herbivores had different feeding tools. Some used beaks to snip leaves, while others had specialised teeth for slicing or crushing vegetation. Others would swallow their food straight down, along with small stones to help with digestion. Large bodies and long digestive systems may have helped many species break down fibrous plants. Because plants provide less concentrated energy than meat, some herbivores probably spent much of their day feeding.

Plant eaters were not helpless, they had horns, armour, tail clubs, spikes, size, speed and group living could all provide protection from predators. Together, their feeding habits and defensive features show how successfully dinosaurs adapted to many environments over millions of years.

Because they were heavy, they couldn’t outrun some meat eaters, however, what they lacked in speed was made up with strength they had enormous strength, they used their tails as a whip and feet as giant crushes inflicting serious injuries. Meat eaters generally stayed clear of them.

 

Blood Supply to the Lungs: Two Circulations, One Vital Organ

 Today I am looking at the bloody supply to our lungs

The lungs have a unique dual blood supply. One circulation makes gas exchange possible, while the other nourishes the lung tissue itself. Together, they keep oxygen moving into the bloodstream and carbon dioxide moving out.

Deoxygenated blood leaves the right ventricle through the pulmonary trunk, which divides into the right and left pulmonary arteries. These arteries follow the branching airways and form capillary networks around the alveoli. Across the thin alveolar–capillary membrane, carbon dioxide diffuses from the blood into the air spaces, while oxygen diffuses into the blood. Oxygenated blood then returns to the left atrium through the pulmonary veins.

The bronchial arteries arise from the systemic circulation, usually from the thoracic aorta or nearby branches. They deliver oxygenated blood to the bronchi, connective tissue, visceral pleura and supporting structures of the lungs. Some bronchial venous blood drains through the bronchial veins, while some enters the pulmonary veins, creating a small normal contribution to the physiological shunt.

The pulmonary circulation is a low-pressure, high-flow system designed for efficient gas exchange. The bronchial circulation operates at systemic pressure and supports the metabolic needs of the lung tissue. Connections between the two systems can provide some backup blood flow, but they can also become clinically important in conditions involving inflammation, obstruction or bleeding.

Let’s look at what happens if there is a blockage a blockage in a pulmonary artery, most often caused by a blood clot that has travelled from a deep vein in the leg or pelvis, is called a pulmonary embolism. It reduces or stops blood flow to part of the lung, so that area may still receive air but cannot exchange gases effectively with the blood. This can lower oxygen levels, increase pressure on the right side of the heart and, if the blockage is large or there are multiple clots, cause haemodynamic collapse or death. Possible symptoms include sudden shortness of breath, chest pain that may worsen with breathing, a rapid heart rate, coughing up blood, dizziness or fainting. A suspected pulmonary embolism requires urgent medical assessment.

 

Week 41 of 2026

 

Daylight savings has started today, Tim is working doing rail again. It has been a warm day, I didn’t feel great this morning but improved after a 20-minute nap.

The improved state didn’t last long, and I had to have another nap 2hrs later. After that I felt much better, well till around 5pm when the restless tremor started again.

For some reason I keep thinking it is Sunday.

Steps: 7, 388

I slept well but I was up at 4.30am, I woke and felt restless, so I go up. Tim is working this afternoon he will leave around 12.30pm and should be home around 9pm.

It’s been a good day I managed to do a few things around the house and sort through a locked box of stuff, it contained the girl’s baptism certificates and a copy of my Tax File Number which I looked everywhere for last year.

Tim rang to let me know he will be home later then expected as he was asked to do an extra run.

Steps: 8,352

I slept well but when I woke up at 2.30am and discovered that Tim wasn’t home yet but when I looked outside, I could see the car and the boot opened so I knew he had just arrived home. I went back to bed and sleep till 4am when I woke again and decided to just get up.

Tim left for work around 9.30am and rang at 11am to tell me he was heading home he was over his hours.

I was able to walk down and post some letters that felt good.

It has been a nice day warm not to hot nor is it cold.

Steps:10,508

I slept well but was up and down to the toilet and by 4.15am I had enough and decided to get up.

Tim was up at 4.30am he has an early start well he said he signs on at 6am but he doesn’t like to be late. This I understand.

It is much cooler today I am long pants again, after a few warm days.

After telling myself that I needed to mop the kitchen floor for the two weeks I finally did it.

Tim has an outpatient appointment at the JHH tomorrow, but when he asked about time off for it, he was told no can do. So, he has had me ring and tell the hospital. Instead of waiting on hold I selected the call back option, it took 2.5hrs for them to ring. When I spoke to them the woman was understanding and said he will get a letter with the new appointment. I made sure they changed the address from the P O Box to the house addressed.          

Steps: 8,063

I had another good night woke at 4am, peed and went back to bed and till the alarm went off at 5am.

Tim was up and long gone he signed on at 4.30ish, he will be home around 3.30ish.

I was sweeping when the broom head came off, I knew it would at some point, but I have another one in the linen press I just have to put it together.

I am having a so so day, the weather is cool but dry.       

Steps:7,963

Dental App Monday 19^th 10am

It was another good night woke at 4.50am. I walked down and posted some letters.

Tim and I are going to Gosford to meet his sister Jenny and her husband Christ for lunch it is an hour’s drive

Lunch was good we spend an hour & a half there we went to Gosford Sailing Club, and the meal was good.

It has been a warm day, I closed my eyes on the trip there and after we had finished eating while Tim & Jenny chatted, I found myself closing my eye having an effort to keep them open, so naturally I closed them on the way home.

 

Steps: 6,689

I got up at 4.50am and after two hours I have had a wash, got dressed, swept and vacuumed, I then swept outside, finished writing yesterday’s diary entry and checked emails and I am now reading blog posts.

It was a cool start to the day but by 11am it was 30c.

Tim left for work at 10.20am I’m not sure what time he will be home just some time tonight.

Steps: 7,520

 

 

 

 

 

 

 

Country with the most cats

 

 

Hi everyone, Archie here with Jo-Anne’s edition of Caturday 

Today we are looking for a bit more at domestic cats mainly which country has the most domestic cats. The answer is the USA but that’s not surprising considering how large the country is.

There is an estimated total of about 74 million cats more than China, with roughly 53 million, and Russia, with about 23 million.

Why are cats so popular in the US? They suit many lifestyles: cats can thrive in houses or apartments, are generally more independent than dogs, and have become beloved companions in millions of households.

On important thing to note is that this global cat estimate is compiled from surveys and different national sources. They usually count owned pets—not feral or stray cats—so figures vary by source and year. Even so, the United States consistently ranks first for the total number of pet cats.

Wondering what cat colour is most popular?

There is no single worldwide survey of people’s favourite cat colour, but the tabby is widely regarded as the most common and recognisable coat. Tabby is actually a pattern—stripes, swirls or spots—rather than one colour, and the brown tabby is often described as its most common variation.

Lastly having the most cats overall does not necessarily mean having the highest cat-ownership rate. A smaller country may have more cats per person or a higher share of households with a cat.

 

Meat-Eating Dinosaurs: Predators of the Prehistoric World

  

This week I am sharing a bit about meat-eating dinosaurs, also called carnivorous dinosaurs.

These were some of the most formidable animals ever to walk the Earth. They lived during the Mesozoic Era, from about 252 million to 66 million years ago. Most belonged to a group known as theropods, which typically walked on two powerful hind legs and had sharp teeth, grasping claws, and keen senses.

One of the most famous carnivores was the Tyrannosaurus rex it was one of the largest land predators, with a massive skull and bone-crushing bite.

Another well-known but not by me was the Velociraptor was much smaller than films often suggest, but it was agile and carried a curved claw on each foot.

Also mentioned in the book I’m using was the Spinosaurus, also not one I have heard of but then I am not really into dinosaurs anyway this one was recognised by the tall sail along its back, had a long, narrow snout and may have hunted fish as well as other prey.

These creatures are built to hunt they used different strategies to obtain food. Some chased living prey, while others may also have scavenged carcasses. Forward-facing eyes helped certain species judge distance, strong legs provided speed or stability, and serrated teeth sliced through flesh. Fossilised bones with bite marks, along with preserved teeth and footprints, help palaeontologists reconstruct these feeding behaviours.

 

Although the giant non-bird dinosaurs disappeared at the end of the Cretaceous Period, their story did not end completely. Birds evolved from small feathered theropods, making today’s birds living members of the dinosaur family tree. By studying meat-eating dinosaurs, scientists continue to learn how ancient ecosystems worked and how predators adapted to a changing world.

 

Lung Capacity

 

Today I am looking at our lung capacity.

Lung capacity describes the amount of air the lungs can hold and move during breathing. It is not a single measurement; instead, it includes several volumes that show how the lungs work during normal breathing, deep inhalation, and forceful exhalation.

The key measurements are:

Tidal volume: the amount of air moved in or out during an ordinary breath.

Vital capacity: the greatest amount of air a person can exhale after taking the deepest possible breath.

Total lung capacity: all the air in the lungs after a maximum inhalation, including air that cannot be voluntarily breathed out.

Residual volume: the air left in the lungs after the strongest possible exhalation; it helps prevent the lungs from collapsing.

Our lung capacity varies with age, height, body size, physical fitness, posture, and health. It may be reduced by conditions that narrow the airways, damage lung tissue, restrict chest movement, or weaken breathing muscles. Regular aerobic activity can improve how efficiently the body uses oxygen, although it may not greatly change the lungs’ anatomical size.

To test our lung capacity is tested using something called a spirometry it measures how much air a person can breathe out and how quickly they can do so. The results are compared with expected values for someone of a similar age and height. Some measurements, including total lung capacity and residual volume, require additional lung-function tests.

 

Week 40 of 2026

 

Had another good night, I woke at 4.30am and it is a cool start to the morning.

The day is cold and wet around 11am Tim walked inside said something about mowing the back lawn and then said he was going to get ready for work. He has been called in to do rail from Newie to Central; he should be home around 9.30pm

Blain and his girlfriend came down to see me when they were visiting Tasha, they arrived just after Tim left for work.

I have a lot of lower back pain on my left side this afternoon so much pain that moving is difficult.

Steps: 6,521

Another good night woke at 4.57 to the sound of rain the temp is 13c or 55f and not supposed to go above 18c.

My back pain has eased, and I can move with wanting to cry.

I was sitting in my armchair when I noticed Sue turn up, she brought over some chocolate cake.

Tim spent all day out the back doing whatever, at least he isn’t just sitting around watching his phone.

I had wanted to do more stuff myself but the pain in my lower back stopped that.

Steps: 6, 995

Another good night, slept through till 4.11am but after peeing I went back to sleep till 4.50am when I got up it is a chilly 8c or 46f.

I was able to walk down and post some letters as the back pain isn’t as bad yesterday.

Tim has had another productive day took the cans to cash in, then found a couple of pallets which he broke up this afternoon as well as finishing the back lawn and then mowing the front lawn. After all that his back is aching. I suggested he apply a heat patch which he did, only to say20-minutes later that it wasn’t working as it was barely warm. I took it an applied it to my hip area I will leave it there overnight.

Steps:9,040

DR BABU 18-1-2027 at 3.40pm

Slept well, I was awake and up by 4.15am, had my shower before coming out to clean the kitchen, sweep and vacuum then have breakie. The temp at 6am was 6c or 43f.

Tim rang the doctors to make an appointment and while talking to the receptionist it was discovered that she was once a bus driver and ask Tim he knew someone and he did another driver he has known for 15yrs.

Received a parcel containing two very nice white pillowcases that I never bought and have no idea why I have them. Yes, there is a return address but it’s the business address and that doesn’t help. Ok I now remember ordering them.

Steps: 8,555

I slept well and was up at 4.50am it is going to be a hot day, I am just not 100% with it this morning my left knee and calf is so painful.

Shopping with Sue this morning and even though I felt mentally good the pain in my leg has made walking so difficult.

When I got home, I changed my clothes and sat with a heat pack on my left knee.

This afternoon when I turned the TV on ready to watch the evening news, I had no free to air. It too me half an hour and a lot of figuring with the antenna to get it back.

Steps: 6,795

I slept well and was up at 4.50am it is going to be another hot day; Sue and I have appointments with the podiatrist.

When I got home, I did the laundry and hung it up to dry and by the time I was done I was in so much pain, I had to sit and do nothing for a while.

Tim found a box of stuffed toys that we sorted through and decided to toss some of them in the washing machine. Tim said he wanted to give some of the away.

This evening Tim moved my recliner from near the front door to near the dining room. I am in two minds about this as I like that now I recline it right back, but I don’t like that I can no longer see out the front door while in the recliner.

Steps:  7,832

I was up at 4.20am and found the kitchen a mess, so that was my first task of the day, no it was the second task as I had to sweep and vacuum first as the ground felt awful.

It will much cooler today with rain, we only had light showers during the day.

This morning I was so restless, I tried to have a nap twice the first time was a failure the second time I manage to sleep for 25-minutes.

Tim is working today, he is doing rail which for those who may not know is when the buses replace the trains due to either track work or an accident.

He has also bought another box trailer that needs some work, he is going to sell the one he already has.

Steps:7,381

 

 

 

 

 

 

 

 

 

The Behaviour of a Persian Blue Cat and some links

 

Here are this week’s links

https://jamfn.blogspot.com/2026/09/a-spring-hodgepodge.html

https://jamfn.blogspot.com/2026/09/getting-to-know-you-or-me-or-someone.html

https://jamfn.blogspot.com/2026/09/sharing-my-world_0425302334.html

https://jamfn.blogspot.com/2026/09/september-hodgepodge.html

Today I am looking at the Persian Blue cat, my daughter also has a Persian Blue named Molly along with Luca who is a Tuxedo.

They are usually calm, gentle, and affectionate cats. They are known for its beautiful blue-grey coat, quiet personality, and relaxed nature. Persian Blues often enjoy peaceful homes where they can feel safe, comfortable, and loved.

Persian Blue cats are generally quiet and well-mannered. They are not usually very noisy or demanding, although they may softly meow when they want attention, food, or comfort. They prefer calm environments and may become shy or unsettled around loud noises, busy rooms, or sudden changes.

These cats often form strong bonds with their owners. They may enjoy sitting nearby, resting on a favourite chair, or curling up beside someone they trust. While they can be affectionate, they are usually not as energetic or playful as some other breeds. Many Persian Blues prefer gentle play, short activity sessions, and plenty of rest.

These are their  personality traits

·       Calm: Persian Blue cats usually like a relaxed and predictable routine.

·       Affectionate: They often enjoy gentle attention from people they know well.

·       Quiet: They are not normally loud cats and may communicate softly.

·       Independent at times: They may enjoy company but also need quiet space to rest.

·       Sensitive: They can be affected by stress, noise, or sudden changes in the home.

Because Persian Blue cats are gentle and sensitive, they should be handled carefully. A calm voice, slow movements, and regular routines help them feel secure. They also need daily grooming because their long coat can become tangled. With patience, kindness, and a peaceful environment, a Persian Blue cat can become a loving and loyal companion.

 

A bit more about dinosaurs

 

Today I’m sharing a little more about dinosaurs, such as the word dinosaur means “terrible lizard.” It comes from two ancient Greek words: deinos, meaning “terrible” or “fearfully great,” and sauros, meaning “lizard.” The name was created in 1842 by the British scientist Sir Richard Owen to describe a group of large, extinct reptiles whose fossils had been discovered. Although the name includes the word “lizard,” dinosaurs were a distinct group of reptiles rather than ordinary lizards.

One of the earliest known dinosaurs was Eoraptor. It lived about 230 million years ago during the Late Triassic Period in what is now Argentina. Eoraptor was a small dinosaur that walked on two legs and was about the size of a large dog. Its name means “dawn thief.”

Dinosaurs were traditionally divided into two main classifications based on the shape of their hip bones:

Saurischia — “lizard-hipped” dinosaurs, including Tyrannosaurus rex, long-necked sauropods, and birds.

Ornithischia — “bird-hipped” dinosaurs, including Triceratops, Stegosaurus, and duck-billed dinosaurs.

Each classification contained many smaller groups and thousands of species. Interestingly, birds evolved from the lizard-hipped group, not the bird-hipped group.

Scientists know of more than 1,000 species of non-bird dinosaurs from fossils. The exact number keeps changing because about 50 new dinosaurs are named each year, while scientists sometimes decide that two named fossils belonged to the same species. Many more dinosaur species probably remain undiscovered.

How to Make a Safe U-Turn While Driving in Australia

 

I think anyone who drives has at some point made a U-turn, it may be a handy way to change direction, but if not done safely it may result in an accident or a fine it done somewhere it’s not legal to do.

So you should only make the turn where it is legal, and you have a clear view, also it should only be done when you can complete it without forcing anyone else to slow down or change course.

In Australia the road rules are broadly similar, but important details vary between states and territories. Always obey signs, traffic lights, lane arrows and line markings. Do not make a U-turn where a “No U-turn” sign applies, and do not cross dividing lines that prohibit it. At traffic lights, a U-turn may be permitted in some jurisdictions only when a sign allows it, while other jurisdictions apply different rules. Check the current road rules for the state or territory in which you are driving.

Make sure your car is position correctly. Move into the appropriate lane or as close as practicable to the centre of the road, subject to local rules, lane markings and traffic conditions.

Signal clearly indicate right for long enough to give other road users reasonable notice. Keep checking your mirrors and blind spots.

Remember you have to give way to everyone as you generally have to give way to other vehicles and road users, including pedestrians and cyclists. Wait for a genuinely safe gap.

My research says that you can only make a U-turn at a roundabout if there are signs and lane markings permit a U-turn at the roundabout. However, I have never seen any of that and have often made a U-turn at a roundabout.

Also, even if a U-turn appears legal, it may not be sensible. Use some common sense and don’t do it near blind bends or hill crests, in heavy or fast-moving traffic, near busy pedestrian areas, or whenever your vehicle cannot complete the turn comfortably.

A U-turn should be one smooth turn and not a three-point turn.

In NSW, making a U-turn at an intersection without traffic lights contrary to a “No U-turn” sign carries a current penalty-notice fine of $339 and 2 demerit points.

Here are some common mistakes to avoid

Assuming the same rule applies in every state or territory.

Starting the turn before checking for motorcycles, bicycles or pedestrians.

Relying on another driver to stop or wave you through.

Turning across prohibited line markings.

Making the manoeuvre when visibility or road width is inadequate.

 

Our Lungs

 This week we are looking at our lungs which are two spongy organs in the chest that help us breathe. When we inhale, air travels through the nose or mouth, down the windpipe and into branching tubes inside the lungs. Tiny air sacs called alveoli move oxygen into the bloodstream, while carbon dioxide—a waste gas—moves out of the blood to be exhaled. The diaphragm, a strong muscle beneath the lungs, contracts and relaxes to draw air in and push it out. Healthy lungs support every part of the body, so regular exercise, avoiding smoke and breathing clean air can help protect them.

They are protective by the rib cage which is a protective framework of bones around the chest. It is made up of the ribs, the breastbone and part of the spine. The ribs help shield the lungs and heart from injury, while the muscles between them assist breathing by allowing the chest to expand when we inhale and become smaller when we exhale.

Inside the lungs, the windpipe divides into two main tubes called bronchi, one leading to each lung. These branch again and again into smaller tubes called bronchioles, like the branches of an upside-down tree. At their ends are millions of tiny air sacs called alveoli, surrounded by very small blood vessels called capillaries. Their thin walls allow oxygen to pass into the blood and carbon dioxide to pass out. Soft, stretchy tissue helps the lungs expand and spring back with every breath.

The two lungs are not exactly the same. The right lung is larger and has three sections, called lobes. The left lung is smaller and has two lobes because it shares space with the heart. It also has a small, curved area called the cardiac notch, where the heart sits.

 

 

Week 39 of 2026

 

I slept till the alarm went off again, it is a hot day, Tim left for work before I got up and will be home sometime this afternoon.

It reached 30c today and I turned the A/C on around 2.30pm not long before Tim got home, after about an hour I realised it wasn’t cooling the house down so went and checked it was on fan not cool, fixed that and all was good.

Steps: 6,799

I slept well woke up at 4.30am it was a good night. It is going to be another hot day, I will turn the A/C on if needed.

At 7.30 I start to feel really tired and at 9.30 I went and had a 20-minute nap.

The temp reached 30c around 11am which is when I turned the A/C on.

Tim will be home later than normal arriving home around 7.10pm

Steps: 8,630

OUR WEDDING ANNIVERSARY 42YRS TODAY

Another good night woke once around 1am then again at 4.30am, I was up at 4.50am. It is a cool wet morning and only expecting a top temp of only 18c, at 6am it was only 14c.

I am not feeling well this morning, and I don’t feel like doing anything.

This morning both Woolies and Coles arrived around the same time in fact the trucks would have passed each other at the top of the driveway.

Steps: 4,664

Had a pretty good night, woke only once too pee then I was up again at 4.30am and thankfully I am feeling better then yesterday. I even walked down and posted some letters off.

Not a warm day, nor a cold day, even though I don’t feel unwell I have little motivation to do anything.

I started putting my recliner back turn on the massage and close my eyes, the massage runs for 20 minutes and so I spend between 20 & 30 minutes having a nap.

Tim has booked our next holiday this will be the last major holiday we will go on in Tims’ mind. We are going to Perth on the Indian Pacific train, and we will spend 3 days in Perth, and we will be flying back to Sydney, we could fly straight back to Newcastle but that would cost twice as much as flying to Sydney. We will get a train from Sydney to Newcastle.

Steps:4,677

Had a good night waking with the alarm we are in for another warm day.

After I hung the washing up to dry, I felt really tired so had a 30-minute nap.

I needed two naps this afternoon and still by 5pm I was feeling tired and not with it again but by 6pm I was feeling more with it.

Steps: 6,777

Good night sleep woke with the alarm, I have a doctor’s appointment just need scripts, so I was in and out in only a couple of minutes.

Natasha also had a doctor’s appointment after me, but I didn’t get Tasha to take me as after the appointment Sue and I went to the shops, I explained to Tasha that I didn’t think she would want to take me shopping and she agreed. She had stuff to do after her appointment as well.

It is a hot day I had to turn the A/C on for a while the temp was 28c.

Steps: 9,827

Another good night up at 4.30am and had a shower I’m wearing a pair of shorts that as shorter in the legs which I generally don’t do but it is supposed to be 30c

I was sitting using the vibration board when I notice I was bleeding from a small cut on my finger; I have no idea how I cut it.

Tim went down to get a loaf of bread, and I asked for a cheese & pineapple roll, they gave him a cheesymite scroll two very different things.

It was a hot day, and I had the A/C on from around 11am, till 5pm.

Steps: 5, 966

 

 

 

 

 

 

 

A bit about Parkinson's part two

Now or part two of my bit about Parkinson's post 

Many of us become experts at hiding our struggles. We smile. We make conversation. We show up. We push through.

But behind that smile may be fatigue, pain, anxiety, brain fog, poor sleep, and a dozen other symptoms that nobody else can see.

That can be lonely.

It can be frustrating.

It can make you feel misunderstood.

The truth is that Parkinson’s is much more than a tremor.

It affects movement, thinking, emotions, sleep, energy levels, balance, speech, and so much more.

And every person experiences it differently.

So if you know someone with Parkinson’s, remember that there may be far more happening than what you can see.

And if you live with Parkinson’s yourself, remember this:

You are fighting battles every day that most people will never fully understand.

You keep getting up.

You keep adapting.

You keep moving forward.

That doesn’t make you weak.

It makes you stronger than they know.

The Origins of Dinosaurs

So, I was thinking about what to write about and while flipping through my Great Book of Predatory Animals and decided to write something about the origins of dinosaurs.

Dinosaurs originated during the Triassic Period, more than 230 million years ago, in a world very different from our own. Most of Earth’s land was joined into the supercontinent Pangaea, and the climate was generally warm and seasonally dry. The largest land animals belonged to a broad reptile group called the archosaurs, which also gave rise to crocodilians and pterosaurs.

Within the archosaurs, a lineage of lightly built, two-legged animals evolved longer hind limbs and an upright posture, placing the legs beneath the body rather than sprawling to the sides. These changes made movement more efficient and helped distinguish the earliest dinosaurs and their closest relatives from many other Triassic reptiles.

Some of the oldest widely accepted dinosaur fossils come from Late Triassic rocks in South America. Early forms such as Eoraptor and Herrerasaurus were relatively small compared with the giants that appeared later. They walked mainly on two legs, had grasping hands, and possessed teeth suited to varied diets, ranging from meat-eating to more general feeding.

Dinosaurs did not immediately dominate the land. For millions of years they lived alongside numerous other reptiles, including large predators and heavily armoured herbivores. Their early history was therefore one of gradual diversification rather than sudden conquest.

By the end of the Triassic, major environmental disruptions and extinction events eliminated many competing groups. Dinosaurs survived and expanded into newly available ecological roles. During the Jurassic and Cretaceous periods, their descendants evolved into an extraordinary range of animals, from enormous, long-necked sauropods to horned herbivores, swift predators, and feathered forms.

The story of dinosaur origins is still being refined as new fossils are discovered. What is clear is that dinosaurs began as modest members of diverse Triassic ecosystems, then flourished for more than 160 million years. One branch of small, feathered theropod dinosaurs eventually gave rise to birds, meaning dinosaurs remain part of the living world today.

 

Emphysema: Causes and Treatment

Today I am looking at Emphysema which is a long-term lung condition and a form of chronic obstructive pulmonary disease (COPD). It damages the tiny air sacs in the lungs, reducing the surface area available for oxygen exchange and making it difficult to breathe out fully. The damage cannot be reversed, but treatment can relieve symptoms, slow further decline and improve quality of life.

What causes it are things like

Smoking: Cigarette smoking is the leading cause. Cigars, pipes and repeated exposure to second-hand smoke can also contribute.

Airborne irritants: Long-term exposure to dust, chemical fumes, smoke or air pollution—especially in some workplaces—may damage the lungs.

Alpha-1 antitrypsin deficiency: This uncommon inherited condition can cause emphysema, sometimes at a younger age or in people who have never smoked.

Age and susceptibility: Risk rises with age and may be influenced by genetics, childhood lung development, recurrent respiratory illness and other individual factors.

Most people with emphysema are diagnosed after age 40, commonly in their 50s, 60s or later, because lung damage usually develops slowly and symptoms may be present for years before diagnosis. People with inherited alpha-1 antitrypsin deficiency can develop emphysema earlier, sometimes in their 30s or 40s, especially if they smoke or are exposed to lung irritants. Age alone does not confirm emphysema; diagnosis usually involves breathing tests such as spirometry and sometimes chest imaging.

Symptoms often develop gradually and may include shortness of breath, reduced exercise tolerance, persistent cough, wheezing, chest tightness, tiredness and unintended weight loss in advanced disease. A clinician may use a medical history, examination, breathing tests such as spirometry, oxygen measurements and chest imaging. Blood testing may be recommended when alpha-1 antitrypsin deficiency is suspected.

How does someone treat this condition well here is what I found.

Stop smoking: Quitting is the most important step for people who smoke. A GP or pharmacist can discuss counselling, nicotine replacement therapy and prescription medicines.

Inhaled medicines: Bronchodilators relax the airway muscles; some people may also benefit from inhaled corticosteroids, particularly when exacerbations are frequent or asthma features are present.

Pulmonary rehabilitation: Supervised exercise, breathing techniques, education and nutritional support can improve stamina and confidence.

Vaccination and infection management: Recommended influenza, COVID-19 and pneumococcal vaccination may reduce complications. Respiratory infections should be assessed promptly.

Oxygen therapy: Long-term oxygen may help selected people with persistently low blood oxygen levels, but it must be prescribed after proper testing.

Specialist procedures: For severe disease, selected patients may be considered for lung-volume-reduction surgery, bronchoscopy valve procedures or lung transplantation.

Alpha-1 antitrypsin deficiency care: Management includes avoiding smoke, specialist monitoring and, in some settings, disease-specific augmentation therapy.