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Is Evolution the Reason for Your Existence

Here are a few of my short random articles that you may find interesting and educational.

By A B ForbesPublished 3 months ago 3 min read
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Is Evolution the Reason for Your Existence
Photo by Reynardo Etenia Wongso on Unsplash

British spelling

Our existence. Is it because of evolution?

Many people don’t believe in the evolution of life, but, as they say, everyone has their own beliefs. I cannot see a more plausible explanation of why we’re here.

Evolutionary biologists agree that humans and all other living species are descended from simple bacteria-like ancestors.

Bacteria can be traced back at least 3. 5 billion years. Over countless generations, small modifications have taken place. Small changes, which are more favourable to life, are more likely to be passed on to the next generation. This has been happening since life first appeared on our planet.

The changes that are passed on are called natural selection, which is why you are here reading this article.

One thing that evolution needs is plenty of time. As it is a very slow process, our lives are too short to see the tiny changes.

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Homo sapiens, they rule the world.

By Keren Fedida on Unsplash

By studying ancient fossils, we know that primitive life was living on Earth billions of years ago.

Our early ancestors existed in East Africa six million years ago, and modern man, known as Homo sapiens, has been around for roughly 200,000 years. Civilisation as we know it has existed for 6,000 years.

The evolutionary path for life on Earth has been very long, but at last, we have arrived.

Some animals have evolved to be stronger, larger, and faster than we are, and some can fly. Many never leave the water, but what sets us apart is that we have developed the most advanced brains.

That amazing brain has given us the intelligence, curiosity, and ability to carry out science, which provides us with a better understanding of our world and life itself.

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The reason for a leap year.

By Ocean Ng on Unsplash

Our planet Earth takes 24 hours to make a full rotation on its axis. We know that time as a day.

We are all aware that there are 365 days in our calendar year, but a solar year is 365 days, 5 hours, 48 minutes, and 46 seconds, which is the exact time the Earth takes to make a complete circuit or orbit around the Sun.

That is why a time adjustment is needed, and a leap day is added to the end of February every 4 years. You will know it as a leap year.

That additional leap day is added to keep the calendar year synchronised with a solar year.

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The cosmic dark ages.

Image credit. Dirk Wouters Pixabay

The universe came into existence about 13.8 billion years ago, but there were no stars at that time. Look at the image and imagine what space would have looked like.

Most of us are familiar with the night sky. We look up and see the moon. We can also see some of the planets, and of course, we can view the distant stars.

But space has not always been like that. It took about 200 million years after the Big Bang (the birth of the universe) for stars to form and shine.

Surprisingly, we can also see the Andromeda galaxy with unaided eyes. The Andromeda galaxy is over 2.5 million light-years away.

Imagine this: for every hour of those 2.5 million years, the light from that galaxy has travelled 1,080 million kilometres towards us. Wow!

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A footprint left in the sand.

By Simon Infanger on Unsplash

Our local star, the Sun, is estimated to be just over 4.6 billion years old, and the magical world we call home is just slightly younger.

Billions of animal species have lived on Earth, and most are now extinct, but there is still an abundance of complex life on the land, in the oceans, and in the lakes.

The Earth was less than a billion years old when primitive life arose.

Look at the image above; it has taken the evolution of life over 3.5 billion years before that human footprint could be left in the sand.

The complex life we see on Earth is truly amazing. Could it be possible that our planet is unique and is the only world hosting intelligent life?

Maybe not, but will we ever find out for sure?

The end.

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You may find my easy-to-understand stories about the universe and life interesting and educational.

If you subscribe to me for free, you will see my latest stories. Regards.

short storyScienceNatureHumanity
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About the Creator

A B Forbes

Someone with a lifelong passion for that gargantuan area we call the universe. I also write stories about life itself. Enjoy

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