Until 6 billion years ago, there was no solar system or planet Earth. About 450 million years ago, a fiery sphere formed from dust particles, and boiling meteorites scattered throughout space. Then its surface took millions of years to gradually cool and form a solid sphere. The orb began to orbit the solar system, the head of the sun.
image source : astroengine.com
That nameless sphere we now call the earth has no grass or little life. At that time the earth was a floating rock with a diameter of just 7927 miles. The oceans formed on Earth about 100 years later.
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Probably 350 years ago a strange phenomenon occurred under the sea called a bacterium called Bacteria. So Bacteria was the first living thing in the world. At the same time the plants began to grow. Plants fed carbon dioxide and released oxygen. The mother plant vines that led to the emergence of organisms in the world today. Without oxygen there would be no human and no organism.
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Then the fish species became the next living thing. The fish species appeared 40 crore years ago.
image source : thetimes.co.uk
Then snakes appeared as lizards and gradually evolved into dinosaurs. From the beginning of 250 million years ago to 60 million years ago, the Earth was inhabited by dinosaurs. The dinosaurs were egg-laying. The dinosaurs have ruled the world for 10 billion years. In addition, small milk-giving organisms also appeared. Although they are not all the fingernail size of a dinosaur, direct nesting is a marvelous phenomenon.
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The human race is one of the youngest mammals. If we take the total time of the earth as 100 percent, the share of mammal rule in it is 4 percent. Of these, only 0.1 percent have a history of being human in particular. During the evolution of mammals, many different species of humans appeared as apes. In which we modern man appeared 4 lakh years ago. Even the cockroach has lived on Earth for 250 million years. The first thing we saw called homosapin was in the middle of the apocalypse.
image source : en.wikipedia.org
