Once the Earth was unlike himself

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2017-06-10 19:30:11

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Once the Earth was unlike himself Source:

Before the appearance of humans, the world was completely different. Our planet didn't always look like this. Over the last 4.5 billion years it has gone through some of the most incredible changes — and they are absolutely indescribable. But we will try to describe them. If you could go back in time millions of years, you do not just see a few other animals. You would have discovered a completely alien world right from the pages of science fiction.

the

all over the planet — the giant mushrooms

About 400 million years ago the trees were up to approximately the waist of the person. Most of them were meters in height, and the other plants was not much more — but not mushrooms. At some point in the history of the Earth mushrooms prototaxites was on every corner of the globe and towered over any other living being.

These mushrooms were legs height of 8 meters and a width of 1 meter. Yes, they will not be higher and thicker than many of today's trees. But at that time they were the largest plants on the planet, exceeding in height all others at a good 6 meters.

They didn't Have such large caps on top, which we used to see regarding the feet of the current fungus. Instead, they are entirely was a foot — fungal just a big pole sticking out of the ground. And they were everywhere. We found fossils of these pieces for every part of the world. That is the last on the planet was entirely a forest of giant mushrooms.

the

the Sky was orange and the oceans green

The Sky was not always blue. Approximately 3.7 billion years, as suggested, the oceans were green, the continents are black and the sky was a bright orange color.

Then the Earth was completely different, and we have every reason to believe that the color scheme was also completely different. The oceans were green, because in sea water dissolved iron formation, shedding green rust color of rusty copper coins. The continents were black because it was covered in cooling lava and they had no plants.

The sky was not always blue. Today in the atmosphere of oxygen, but 3.7 billion years ago it was not so much. The sky was mostly methane. When the sunlight breaks through the methane atmosphere, it paints the sky in orange color.

the

planet stank of rotten eggs

When we talk about what was a planet, we are guided not only guesses and theories. Scientists almost certainly believe that you know what was the smell of the planet in the past. If somebody sniffed the air and 1.9 billion years ago, he clearly discerned the smell of rotten eggs.

All because the oceans were full of gaseous bacteria that feed on the salt in sea water. Bacteria took salt and releasing hydrogen sulfide, filling the air with a characteristic odor that we associate with eggs that is all.

And that scientists are still trying to put it mildly. Let's be honest — we have creatures, which daily emit hydrogen sulfide into the air. We can say that the world of the past smelled like farts.

the

planet was purple

When the Earth began to grow the first plants, they were not green. According to one theory, they were purple. If you looked at our planet from space three to four billion years ago, it would have been purple in the same degree as green today.

It is believed that the first forms of life on Earth absorb the Sun's light a little differently. Modern plants are green because they use chlorophyll to absorb sunlight, but the first plants used the retina and differed characteristic purple hue.

Perhaps purple for a long time our color. About 1.6 billion years ago, after the vegetation covering the planet became green, purple steel and our oceans. A thick layer of purple sulfur covers the surface of the water, and it was enough to paint all the oceans in purple color and make them highly toxic.

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the World was like on the snow

We All know that our planet has experienced ice ages. However, there is exact proof of the fact that 716 million years ago, the winter was at its peak, as if in some cartoon. This period is called the period of "Earth-snow", because the Earth was covered by ice almost entirely, and from space looked like a giant snowball.

The World was so cold, that at the equator was the glaciers. Scientists proved this by discovering the traces of ancient glaciers in Canada. It might be hard to believe, but 700 million years ago this part of Canada was on the equator. The warmest place on Earth was cold as the modern Arctic. However, now scientists no longer think that the Earth was like white snow, because that 716 million years ago was another horror. Volcanoes continuously erupted, filling the skies with ash and mixing the ice, snow and ashes one dirty grayish mass.

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Acid rain fell on the Earth for 100,000 years

In the end period of the Earth-snow is over. But the horrors didn't stop. It is believed that the Earth went through a period of "intense chemical weathering". Acid rain constantly washed the earth from the heavens for 100,000 years.

The Acid rain was so heavy and pungent that melted the glaciers covering the planet. But there is a silver lining — in the process of into the ocean went the nutrients that allowed for life, sent the oxygen to the atmosphere and provided a Cambrian explosion of life on Earth.

But before the air was full of carbon dioxide, and acid rain poisoned the ocean. Until life scattered on the Ground, it was poisonous, inhospitable desert.

the

the Arctic was green and full of life

Approximately 50 million years ago the Arctic was a completely different place. This time was called the early Eocene, and the world was much warmer than it was then. In Alaska you can find palm trees, and crocodiles swam off the coast of Greenland.

Even the Northern cap of the planet was covered with greenery. It is believed that the Arctic ocean was a giant swimming pool of fresh water and the life in him was seething. The water was full of green algae and all the Arctic blossoms green ferns.

But the tropics call those days was difficult. Then the warmest months in the Arctic was the temperature around 20 degrees Celsius. And still the Northern part of our world was full of giant turtles, alligators, the first hippos that used to live in eternal winter or the dark.

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Dust covered the sun

When the asteroid is guilty of the destruction of the dinosaurs, hit Earth 65 million years ago, a single drop is not over. The world has turned into a terrible, dark place.

The Fall of an asteroid sent dust, soil and stones straight into the sky and even into space. Tons of them left in the atmosphere and surrounded the planet with a massive layer of dust. For the creature, which was on the Ground, the Sun disappeared from the sky.

Lasted all that long — a few months. But when a giant cloud of dust settled, the sulfuric acid remained in the stratosphere and into the cloud. They became so thick that within ten years the Earth spilled acid rain.

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Rain of molten rock

The asteroid, however, were nothing compared with those that fell to the planet four billion years ago. In the early days of our planet, the rain of asteroids bombarded the Earth and turned it into a hellish planet from the pen of a surrealist artist.

The Oceans on the planet become so hot that the boiled. The heat from the asteroid impact vaporized the first oceans on Earth, turning them into vapor, which just disappeared. Huge portions of the surface of the Earth melted. Giant solid mass that covered the planet, turned into a liquid that just floats around like a slow moving river, with unbearably hot temperatures.

Worse, some breeds disappeared and became Earth's atmosphere. Magnesium oxide rose into the atmosphere like evaporating water, and condensed into droplets of liquid hot magma. So almost as often as we see the rain today, in ancient times, the Earth saw the magma falling from the heavens.

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Giant insects were everywhere

About 300 million years ago, the world was covered with a massive lowland swamp forests and the air was filled with oxygen. Then it was 50% more oxygen than today, and we have seen an incredible explosion of life. Also, there are giant insects, like from the movie.

For some beings of the entire oxygen in the atmosphere was too much. Small insects are not able to cope with it, therefore, became more and more. Some of them have become huge. Scientists have found fossils of dragonflies the size of modern seagulls and a wingspan of 0.6 meters.

On the Ground there were giant beetles and other insects. But not all of them were friendly. Giant dragonflies, according to scientists, was a carnivore.

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