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