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The Jurassic period was about 100 million years ago, and the age of the Ice Age was only a few tens of thousands of years ago.
Jurassic plants are only convulsions, (there is no grass on the ground.) The movie is about resurrecting dinosaurs in a modern setting. It was warm, the vegetation was lush, and the dinosaurs lived well, so they multiplied.
Among the various types of dinosaurs, there are two major types of herbivorous carnivorous dinosaurs, which form a stable biosphere. Very few mammals, like rodents, have just emerged and have a hard time. From the movie Jurassic Park, you can't see the living environment at that time.
The Ice Age refers to the first ice age, and mammals are well developed, so you see sloths and mammoths, big rhinos. There are also reptiles such as turtles, but they are no longer the main part of the animal. It was very cold at that time, but angiosperms appeared, (you can see morning glory, this bright, large corolla flower was also not many at that time) a lot of grass appeared, and it was difficult for angiosperms to adapt to the cold climate, but angiosperms Many of these flowering plants can be hardy, so the food is small but enough.
At that time, many animals had the habit of migrating. Because there were almost no plants to bloom and grow in the winter of the Ice Age, they hibernate until the following summer.
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You'll have to ask about dinosaurs and mammoths. We and they are not the same dynasty drops. Oh, by the way, before you ask, learn the language so that it is easier to communicate.
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Reading "The Unsolved Mysteries of Dinosaurs" has a feeling.
Wow-" A scream came out of my mouth.
I held this book in my hand and my mind was full of curiosity and incredibleness!
I read the whole book carefully with this inquisitive heart, and my heart was like a surging tide, and I couldn't calm down for a long time.
It's a history of dinosaurs. The story goes back between 100 million and 65 million years ago, when the Earth was just forming. Paleontologists speculate that the ancient ancestors of the dinosaurs may have appeared during the Cambrian period.
Looking at the glorious scenes of the age of dinosaurs, I even imagined that I was one of the dinosaurs, the best of that era, and I freely enjoyed the rewards of nature, swimming at the bottom of the ocean, soaring above the blue sky, and running wildly among the jungles. However, the strength of the dinosaurs did not retain their glory, and eventually, the fittest survived, and more tenacious life forms took their place.
When I closed the book, my mind couldn't calm down for a long time, as if there were thousands of unsolved mysteries waiting for me to solve. This urgency forced me to open the book again, and when I read it more carefully, "Wow-" the stone in my heart finally fell.
Among them, the chapter "Can Dinosaurs Be Resurrected" aroused my great interest. I learned that there were certain difficulties to overcome if I wanted to bring the dinosaurs back to life. First of all, we need to get some kind of dinosaur DNA and then transplant the dinosaur DNA molecule into the fertilized egg cell of the female crocodile, so as to clone the genes of both dinosaurs and crocodiles, and after repeated many times, the dinosaur genes are close to 100%, and finally the dinosaur hatches from the crocodile egg.
However, getting dinosaur DNA molecules is like looking for a needle in a haystack, and even if the DNA is in hand, transplantation is a difficult technical hurdle to overcome. I wondered if dinosaurs, such a huge paleontosaur, were to reappear on Earth, would it be a threat to humans?
From the book, I found some of the answers I wanted, but some more questions were born in my mind that I have not been able to solve. However, what I have learned from the book is undeniable. Confucius said:
Those who know are not as good as those who know, and those who know well are not as good as those who are happy to know. "Now I finally understand it. I believe that interest is the spiritual force that pushes people to seek and explore the truth, and only when interest leads to learning and research.
Not only interest, but also people's curiosity from the heart, thinking because of curiosity, exploring because of thinking, and discovering because of exploration.
For thousands of years, it is the unremitting exploration of human beings that has achieved countless great dreams and promoted the continuous progress of civilization. That's true, only interest and curiosity can make you strive to explore and discover.
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1. The living environment of penguins.
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