One day 66 million years ago, a The asteroid fell to the ground and provoked Dinosaurs disappear. In the months after the impact, 75% of the remaining species died. But what about the asteroid if he never hit the plans? Would the earth be dominated by the world today?
Researchers looked at the situation. Despite the disagreements, there are something: humans probably didn’t exist.
Dinosaurs lived in millions of years on the ground
The giants lived 165 million years earlier before the extensive 15-kilometer chicxulub as an extensive asteroid, falling to the ground. The initial influence was not the only problem: spatial stone, forest fires, acid rains and solar block, 75% of the planet’s life was died.
But if that didn’t happen, would the dinosaurs stay alive?
Some scientists believe that they would have been extinct.
Already paleontologists believe they would live. After all, the dinosaurs lasted millions before the asteroid, among other things, adaptations and volcanic eruptions of temperature and tidal changes.
According to Steve Brusatte, a teacher of Paleontology at the University of Edinburgh, there was a great diversity and abundance of these animals, which indicates that they were “strong, successful and diverse.”
And the glacier era?
But the dinosaurs would last an ice age? After all, Chicxulub fell on the ground for most living species without snow.
Brusatte, on site mail Direct scienceSome of them can be adapted to new extreme conditions. The pen dinosaurs, for example, were able to isolate themselves, as the mammals did during the glacier. Famous already Tyrannosaurus Rex It was probably the heat, the transition that occurred in response to climate change. That is, at some point, he had to adapt.
It is also likely that the giants have developed anti-cold protection while the wool won, while migrated to the Cold Region of Eurasia.
Read more:
Intelligent dinosaurs?
Physical evolution is the option, but the dinosaurs would become smart creatures?
Dale Russell was asked by an experiment in 1982 of the American Paleontologist in Canada, whether trodontids were aware of their senses. In response to the question, animals were based on large brains, opposing fingers, bipedal stature and stereoscopic view
The result: Russell concluded that they could evolve to an encephalization phase Homo sapiens.
Other researchers have excluded this idea, but they did not deny that the potential of animals have intelligent potential. Proof of this are the modern birds of prehistoric giants with more neurons than mammals … but they still have no similar human beings.
What does that mean for humans?
For Brussels, the evolution of mammals in general would not be the same if the dinosaurs survived. He mentioned that the animals would last millions of years, because they had no choice of territories to grow and occupy.
However, the latter mentioned that glaciers and temperatures were lower, that he could be an advantage for hot hairy creatures, leaving the giants behind.
But what about humans?
- Brusatt believes that it would be impossible to become a dinosaur in a dinosaur for humans.
- Paul Sereno, Paleontologista and the Biology Professor of the University of Chicago, agreed that small mammals and leather could do well in these conditions, but man would never evolve “;
- Sereno remembered, at the email address Direct scienceTherefore, our ancestors evolved was the disappearance of dinosaurs. That is, if the asteroid did not hit the ground, humans would not be here.