Merdeka.com – About 66 million years ago, the Earth, which was ruled by various species of dinosaurs, had to undergo major changes. The change occurred when an asteroid as large as 10 kilometers with a force of 10 billion atomic bombs hit Earth.
The blow caused earthquake earth, tsunami, to the death of 90 percent of living things that live on Earth. Even though it brought great destruction, scientists revealed that it was this event that allowed humans to evolve.
Mammal species including primates can thrive after the death of various dinosaurs.
But imagine if the dinosaur-killing asteroid never hit Earth. It is believed that the asteroid strike that pushed human evolution will never happen. Humans who have brains to think, have tools, languages, and various communities are also believed not to dominate the Earth.
So what would have happened to life on Earth if the dinosaurs had never disappeared and humans had never existed?
Paleontologist Dale Russell in the 1980s once revealed that dinosaurs that never died out could evolve into intelligent tool users. At that time Russell named dinosaurs that evolved similar to humans as ‘Dinosauroids’.
Russell believes that dinosauroids themselves can walk upright because they have bodies similar to humans. But Russell’s speculation must be proven considering the many species of large-bodied dinosaurs that have ever been found. This was quoted from The Conversation, Monday (28/11).
Imagine the Brontosaurus dinosaur which weighed 16 – 22 tons and was 21 – 23 meters long evolving into
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dinosaurs weighed 30 – 50 tons and had a body length of 30 meters. Then the dinosaur species Sauropods evolved beyond their lung capacities, hollow bones, and metabolic capabilities.
Then carnivorous dinosaurs such as megalosaurus, allosauridae, carcharodontosauridae, neovenatoridae and tyrannosaurus evolved to become predators at the top of the giant food chain.
It is believed that all dinosaur bodies would have grown in size over time if the asteroid had never hit Earth. But the big body does not go hand in hand with the development of the brain.
Even before the Cretaceous Age or 80 million years ago, the brain of a tyrannosaurus only weighed 400 grams. The velociraptor’s brain weighed only 15 grams. Both brains are even lighter than the human brain which weighs an average of 1.3 kilograms.
Because it is believed that the evolution of dinosaurs will stop because of the failure of their brain development. Even though evolution has stopped, scientists believe that dinosaurs used to live in their respective herds.
Herd life shows the complexity of dinosaur life. But the herd’s life would also come to a halt because of its undeveloped brain.
But scientists believe the dinosaur brain can continue to grow. Even though it continues to grow, there is little evidence that dinosaurs can evolve geniuses like humans.
In contrast to mammal species. Although mammals could evolve, they would never evolve into giant living things. The brains of mammals will also continue to develop, such as those of killer whales, sperm whales, baleen whales, elephants, leopards and apes.
Because of this, scientists say that the evolution of mammals, including primates, cannot be avoided. In Africa, the area that scientists believe is the place of human evolution, has encouraged human ancestors for seven million years to be able to survive and use various ancient tools.
Humans are also believed by scientists to evolve because the African environment encourages brain development, the use of tools so that they can walk upright.
Intern Reporter: Theophilus Jose Setiawan
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