Divided into categories, protozoa, echinoderms, molluscs, flatworms, annelids, coelenterates, etc. have appeared.
The species prospered.
And their size, the largest, is no bigger than a little finger.
Simultaneously.
They have one thing in common, no spine.
So they are also called invertebrates!
Qin Mu stood on the coast, looking at the sea of new generations replacing old ones.
He looked happy.
The massive flourishing of invertebrates...
It means that vertebrates are not far away!
This will be a qualitative leap!
……
Year 3.5 million.
Invertebrates have taken over the oceans.
Because there is less and less food.
So they are forced to attack each other and feed on other species.
The battle begins.
And weak species are destined to be unable to eat food, or become someone else's dinner plate.
Evolution, in this case, was forced to happen again.
They began to actively arm their bodies.
Make your own shell harder and harder.
While protecting yourself, you can also hunt better.
So more and more crustaceans appeared.
they……
Become a new round of overlord.
Year 3.7 million.
Crustaceans proliferated and ruled the oceans.
same.
Involution begins again.
All other species are stronger.
They can't eat food anymore...
and so.
Evolution is forced again.
Instead of strengthening their outer shell, they strengthen the inside of the body.
The spine is quietly generated!
With the spine, they will gain faster speed, stronger digestion ability, and more terrifying bite force.
In this category of creatures, primitive fishes lead the tide of the times.
among them.
Because of their powerful defense and attack, placoderms and sticklebacks have become the new overlords of marine life.
Year 3.6 million.
Qin Mu stood in front of the endless coastline.
I saw the most spectacular scene in the evolution for so long.
this time.
It is also the accumulation period of all species on the blue star.
Because of the combination of many factors.
During these 1000 million years.
Vertebrate organisms have changed dramatically.
They were divided into categories, and tens of thousands of different vertebrates were born.
They abound in all parts of the ocean, displaying different biological potentials.
part of it...
It even came directly to the coastline, walking towards the land.
Evolved into an amphibious reptile!
Qin Mu stood beside the coastline.
At every moment, a large number of creatures can be seen crawling out of the ocean and onto the land.
Like light and shadow.
"This... may be equivalent to the explosion of life in the Cambrian Period."
Qin Mu took a deep breath and couldn't help muttering.
indeed.
The explosion of species diversity during this period has surpassed all previous periods of his evolution.
Reptiles appear and move around on land.
Birds flying in the sky also appeared in this period!
They flapped their wings and soared in the sky.
Enjoy the blue sky that belongs to them.
Chapter 66 Intelligent species, human beings are born! [eight more]
Year 3.8 million.
After a period of reproduction.
Land creatures have become the overlord of Blue Star.
Birds and reptiles began to rule the top of the food chain.
Representatives of these are large creatures such as dinosaurs.
Year 3.9 million.
Dinosaurs are still the overlords on Blue Star.
Year 4 million.
Dinosaurs still occupy the top of the terrestrial food chain.
Year 4.1 million.
Qin Mu discovered...
The status of the dinosaur overlord is very stable.
They multiply rapidly and eat other species like crazy.
Makes biological reproduction and evolution slower and slower.
Seeing this, Qin Mu couldn't help frowning.
If this continues...
His [-] million years of acceleration have run out, and intelligent creatures have not yet evolved.
then.
He took a deep breath.
Just a thought.
Imitating the scene that happened on the earth before the crossing, a large number of meteorites were transferred from outside the sky!
Those meteorites floating in the universe.
Turned into a meteor.
Ruthlessly fell to the ground.
A terrible extinction disaster was formed.
Earth cracks.
Countless volcanic gases rose and entered the sky.
Cover the sky.
The sky with blue stars turned gray.
Enduring.
The dinosaurs did not die in this meteorite impact.
but……
Because of the gray volcanic ash, the sun cannot shine on the earth.
The sun cannot penetrate the thick cloud of ash to the ground.
The temperature of the blue star...
Start descending rapidly!
It's getting extremely cold!
The cold swept across the entire Blue Star.
Frost coverage.
It poses a fatal threat to the large species on the blue star.
at last.
At 4.2 million years.
All dinosaurs are extinct!
The overlord who ruled Blue Star for 5000 million years finally bid farewell to the stage of history.
And the volcanic ash covering the sky...
After 1000 million years, it also completely dissipated.
The light returned to the earth again.
The temperature rises again.
Blue Star's ecology has returned to normal.
Evolution, continue to start!
Year 4.3 million.
All kinds of species, flourishing again.
With the extinction of the reptile overlords.
Mammals finally had their chance to rise.
They boarded the Blue Star stage.
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