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Most scientists believe that the extinction of non-avian dinosaurs occurred due to a catastrophic asteriod impact called the Cretaceous-Tertiary extinction event.
Based on fossil evidence, modern day birds evolved from dinosaurs that were not killed as a result of the Cretaceous-Tertiary extinction event.

What Killed The Dinosaurs? - University of California Museum of ...


Two main camps exist in paleontology today, each having a different view of what killed the dinosaurs and other organisms at the K-T boundary. Controversy ...

What Killed Dinosaurs: New Ideas About the Wipeout


Feb 11, 2013 ... New insights about the asteroid thought to have killed off the dinosaurs suggest it may have just been the final blow, and that the reptiles were ...

What Killed The Dinosaurs? Bad Luck, Study Suggests | TIME


Jul 29, 2014 ... A newly-released paleontology report suggests the dinosaurs were made ... last piece of bad fortune in a run of poor luck that killed the species.

Evolution: Extinction: What Killed the Dinosaurs? - PBS


In just a few years, according to this hypothesis, these frigid and sweltering climatic extremes caused the extinction of not just the dinosaurs, but of up to 70 ...

What Really Killed the Dinosaurs? - YouTube


Aug 16, 2014 ... What wiped out the dinosaurs? Most of us were taught it was a killer asteroid -- which is true. But it turns out there was more than one disaster ...

What really killed the dinosaurs? | MIT News


Dec 11, 2014 ... Prior to 1980, the exact cause of dinosaurs' demise was unknown; one hypothesis proposed that they were killed off by massive volcanic ...

Everything you know about how dinosaurs died is wrong


Jun 6, 2015 ... PRINCETON, N.J. — Ask any T. Rex–obsessed 5-year-old boy how the dinosaurs died, and he will tell you a giant asteroid killed them.

Ask HISTORY: What Killed the Dinosaurs? Video ... - History Channel


Get the full story behind the extinction of the mammoth species that once roamed the earth.

Scientists still can't settle on what killed the dinosaurs - The ...


3 days ago ... It's one of the biggest unsolved whodunits in history: What killed off the dinosaurs ? Scientists are pretty sure that something awfully big ...

Popular Q&A
Q: What killed the dinosaurs?
A: Probably the most popular theory right now is the Asteroid Theory. According to this theory a large asteroid or comet collided with Earth about 65 million years... Read More »
Source: answers.yahoo.com
Q: What killed the dinosaurs and how?
A: Most scientists say that an asteroid killed off the dinosaurs. Read More »
Source: www.chacha.com
Q: What killed the dinosaurs?
A: A current theory that is widely accepted and supported by a great deal of evidence is that organisms were decimated by the environmental effects of the Chicxulu... Read More »
Source: wiki.answers.com
Q: What killed the dinosaurs?
A: The cause of the extinction of dinosaurs is still a scientific mystery. Most scientists agree that meteor showers or extremely active volcanoes killed them. rep... Read More »
Source: www.kgbanswers.com
Q: What killed the dinosaurs?
A: an asteroid 6-10 miles wide struck mexico's yucatan peninsula creating the extinction verified by the iridium in the c-t boundary. Read More »
Source: answers.yahoo.com