
250 million is the new 40: Mammals may already be halfway done on Earth, study finds
A new study in the journal Nature Geoscience predicts that 250 million years from now, a supercontinent formed around the equator will be too hot for mammals to survive. Jean-Philippe Ksiazek/AFP via Getty Images hide caption toggle caption Jean-Philippe Ksiazek/AFP via Getty Images A new study in the journal Nature Geoscience predicts that 250 million…