the failure of the 2007 polar bear survival model is a simple fact that explodes the myth that polar bears are on their way to extinction.
the failure of the 2007 polar bear survival model is a simple fact that explodes the myth that polar bears are on their way to extinction.
extinction event:11
the most recent and arguably best-known, the cretaceous–paleogene extinction event, which occurred approximately 66 million years ago (ma), was a large-scale mass extinction of animal and plant species in a geologically short period of time.