Nitrogen fixing bacteria may have helped some cycads survive to the present day DURHAM, N.C. -- Once a favored food of grazing dinosaurs, an ancient lineage of plants called cycads helped sustain ...

Ancient cycad lineages that survived the extinction of the dinosaurs may have done so by relying on symbiotic bacteria in their roots to fix atmospheric nitrogen. The finding came from an effort to ...

Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...

One of the most surprising effects of the cascade of changes was...fruit? One of the most surprising effects of the cascade of changes that played out in the wake of dinosaur extinction may have been ...

DURHAM, N.C. -- Once a favored food of grazing dinosaurs, an ancient lineage of plants called cycads helped sustain these and other prehistoric animals during the Mesozoic Era, starting 252 million ...