Ergebnis für "Before us" in Wissenschaft

For most of us, the story of mammal evolution starts after the asteroid impact that killed the dinosaurs, but over the last 20 years, scientists have uncovered new fossils and used new technologies that have upended this story. In Beasts Before Us, paleontologist Elsa Panciroli charts the emergence of the mammal lineage, Synapsida, beginning at their murky split from the reptiles in the Carboniferous period, over 300 million years ago. They made the world theirs long before the rise of dinosaurs.

Every living person can trace their ancestry back to Africa, where modern humans evolved some 300,000 years ago before expanding out of Africa and around the world. Those early humans lived lives filled with emotions and challenges much like people today and their journeys stand as a testament to human intelligence, ingenuity, creativity, and resilience. But, what does the archaeological record tell us about their lives, their successes, their failures, and who we are today? In this podcast, world-recognized experts in maritime and prehistoric archaeology, Dr. Helen Farr and Dr. Erich Fisher, ...

We have reached the point of no return. The existential threat of climate change is now a reality. The world has never been more vulnerable. Yet corporations are already planning a life beyond this point. The business models of fossil fuel giants factor in continued profitability in a scenario of a five-degree increase in global temperature. An increase that will kill millions, if not billions. This is the shocking reality laid bare in a hard-hitting new book by David Whyte.

Of all the natural disasters that could befall us, only an Earth impact by a large comet or asteroid has the potential to end civilization in a single blow. Yet these near-Earth objects also offer tantalizing clues to our solar system's origins, and someday could even serve as stepping-stones for space exploration. In this book, Donald Yeomans introduces listeners to the science of near-Earth objects - its history, applications, and ongoing quest to find near-Earth objects before they find us.