- This is the leading theory for the extinction of dinosaurs.
- It suggests that a massive asteroid,大约6英里宽, crashed into Earth near what is now Chicxulub, Mexico, about 66 million years ago.
- The impact would have created a crater at least 93 miles wide, triggered massive tsunamis and wildfires, and launched vast amounts of dust into the atmosphere, resulting in long-term climate change.
Deccan Traps Eruptions:
- This is another theory that has gained traction in recent years.
- It suggests that massive volcanic eruptions in India, known as the Deccan Traps, released large amounts of sulfur dioxide and other gasses into the atmosphere, leading to a series of global cooling and climate change.
- The Deccan Traps eruptions may have contributed to the extinction of dinosaurs by disrupting ecosystems and causing widespread ecological changes.
Other Factors:
- In addition to these two main theories, several other factors may have contributed to the extinction of dinosaurs, including:
- Gradual climate change
- Competition from mammals
- Disease
- Changes in sea level
It's important to note that the exact cause of the dinosaur extinction is still debated among scientists, and further research is needed to fully understand the mechanisms behind this mass extinction event.