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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 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.

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 ...

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? | 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.

www.ask.com/youtube?q=What Killed the Dinosaurs?&v=1iNcRJGzzxs
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 Killed the Dinosaurs in Utah's Giant Jurassic Death Pit ...


Jul 10, 2015 ... Utah is dinosaur country—so much so that the state has a scenic byway system called the Dinosaur Diamond that connects ancient final resting ...

What Killed the Dinosaurs Was More Devastating Than an Asteroid


2 days ago ... For nearly 40 years, paleontologists have argued over what really killed the dinosaurs. Was it an massive asteroid impact, or a spate of volcanic ...

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: Theories as to what wiped dinosaurs from the face of the planet range from super volcanoes through to asteroid impact and prehistoric climate change. Read More »
Source: www.kgbanswers.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 dinosaur empire got too big and since they didn't have the brains to invent the electric telegraph, let alone the telephone or radio they could not administ... Read More »
Source: answers.yahoo.com