We’re at the precipice of a mass extinction, of all plants across the East Coast,” said Prof. Bethany Bradley of UMass. “If ...

The number of species does not increase evenly when going from local ecosystems to continental scales -- a phenomenon ecologists have recognized for decades. Now, an international team of scientists ...

The Spanish prime minister, Pedro Sanchez, said that a problem in the European grid caused the huge power outage that struck ...