A diverse clan of fearsome crocodilians once roamed the entire planet. Today, only 23 species remain in a handful of locales worldwide. We’ve all heard tales of the giant asteroid that did in the dinosaurs, but the demise of the crocodilians was far less dramatic. The crocs were picked off quietly, as our planet…
Whatever you think about today's prognosis for global warming, there's no denying that the planet has been a lot hotter in the past. Now we know some of that heat was generated by carbon dioxide emissions 40 million years ago.
Wondering why the weather is so strange lately? Why it's raining all the time in certain parts of the globe, but really dry in others? It's all because of flowers.