|Picture Credit: Everything Dinosaur|
Sixty-five million years ago, a massive asteroid slammed into Earth, causing tsunamis, earthquakes, fires, a global winter and the end of the age of the dinosaurs.
But what if the asteroid had glided safely past our planet? Would dinosaurs still be here today?
New research suggests the answer is probably not. Instead, scientists have found evidence that dinosaurs were in the midst of a long, slow decline that began millions of years before the asteroid struck. . . .
The authors are not sure what caused the speciation rate to slow down, but they have a few ideas. They explain that the Cretaceous period (145.5 million to 65.5 million years ago) was a time of drastic geological changes. The global climate was cooling down, there was prolonged volcanic activity and the continents were breaking apart.
Like I keep saying, environmental changes will do it every time.