www.merdeka.com – About 66 million years ago, the Earth, ruled by various species of dinosaurs, had to undergo major changes. The change came when a 10 kilometer wide asteroid with the force of 10 billion atomic bombs hit the Earth.
The blow caused earthquake earth, tsunami, to the death of 90 percent of living beings living on Earth. Even though it brought great destruction, scientists have revealed that it was this event that allowed humans to evolve.
Mammal species, including primates, can thrive after various dinosaurs die.
But imagine if the dinosaur-killing asteroid never hit Earth. It is believed that the asteroid impact that propelled human evolution will never happen. It is also believed that humans who have brains for thinking, tools, languages, and various communities do not rule the Earth.
So what would have happened to life on Earth if dinosaurs had never disappeared and humans had never existed?
Paleontologist Dale Russell in the 1980s once revealed that dinosaurs that never went extinct could evolve into intelligent tool users. At the time Russell called dinosaurs that evolved similar to humans “Dinosauroids”.
Russell believes that dinosaurs themselves can walk upright because they have human-like bodies. But Russell’s speculation needs to be proven by considering the many large dinosaur species that have ever been found. This was quoted by The Conversation, Monday (11/28).
Imagine the brontosaurus dinosaur that 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. So the Sauropod dinosaur species evolved beyond their lung capacities, hollow bones, and metabolic capabilities.
So carnivorous dinosaurs like megalosaurus, allosauridae, carcharodontosauridae, neovenatoridae and tyrannosaurus evolved to become predators at the top of the gigantic 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 great body doesn’t go hand in hand with brain development.
Even before the Cretaceous or 80 million years ago, the brain of a tyrannosaur weighed only 400 grams. The velociraptor brain weighed just 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 due to the failure of their brain development. Even though evolution has stopped, scientists believe that dinosaurs lived in their respective herds.
The life of the herd shows the complexity of dinosaur life. But the life of the pack would also stop due to its undeveloped brain.
But scientists believe that dinosaur brains may continue to grow. Even as it continues to grow, there is little evidence that dinosaurs could evolve genes like humans.
Unlike mammal species. Although mammals could evolve, they would never evolve into giant living things. Mammalian brains will also continue to develop, such as those of killer whales, sperm whales, whales, elephants, leopards and monkeys.
For this reason, 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, encouraged human ancestors for seven million years to be able to survive and use various ancient tools.
Scientists also believe humans evolve because the African environment encourages brain development, the use of tools so they can walk upright.
Intern reporter: Theophilus Jose Setiawan
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