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What would happen if dinosaurs were never wiped out?
If the dinosaurs hadn’t been wiped out in a mass extinction 66 million years ago, the world would look very different today… Around 66 million years ago, a 14km-wide asteroid smashed into our planet. Some of the dinosaurs far from the impact site might have survived, and the world would be a different place today.
How would life be if dinosaurs were still alive?
Most dinosaur species haven’t walked the Earth in about 65 million years, so the chances of finding DNA fragments that are robust enough to resurrect are slim. After all, if dinosaurs were alive today, their immune systems would probably be ill-equipped to handle our modern panoply of bacteria, fungi and viruses.
What do you think may happen if dinosaurs are still alive?
What dinosaurs were killed by the asteroid?
Scientists have long believed that an asteroid killed off the dinosaurs about 65 million years ago. They hypothesized that the asteroid collision caused clouds of dust, earthquakes, fire and heat that was cataclysmic.
Which asteroid killed the dinosaurs?
An artist’s rendering of the Chicxulub asteroid impact that killed off most of the dinosaurs from 1994. Credit: Donald E. Davis/ NASA /JPL. The Chicxulub asteroid impact that wiped out the dinosaurs likely released far more climate-altering sulfur gas into the atmosphere than originally thought, according to new research.
How big was the asteroid that killed the dinosaurs?
If you’ve found this page simply wanting to know how big the asteroid that killed the dinosaurs was, here are the basics: The asteroid believed responsible for the Cretaceous – Paleogene Extinction Event is estimated to have been between 10 and 15 kilometres (6 and 9 miles) across.
Where did the asteroid that killed dinosaurs come from?
Dinosaurs were killed off by Isle of Wight-sized asteroid, scientists say. It crashed into the Earth in what is now Mexico, at Chicxulub , off the Yucatán peninsula. Dr Gareth Collins, one of the scientists from Imperial College London, said: “The asteroid was about the size of the Isle of Wight and hit Earth 20 times faster than a speeding bullet.