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Plants that survived dinosaur extinction pulled nitrogen from air

Durham NC (SPX) Nov 21, 2023 - 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 years ago, by be

Plants that survived dinosaur extinction pulled nitrogen from air

How a favorite dinosaur food survived mass extinction

A few groups of palm-like plants that were a favored food of grazing dinosaurs still exist today. Now researchers have discovered how.

Plants that survived dinosaur extinction pull

<p>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 understand ancient atmospheres, but became an insight into plant evolution instead.</p>

New Nicholas Researcher Finds Plants That Survived Dinosaur Extinction Pulled Nitrogen from Air

Researchers prefer same-gender co-authors, study confirms

Researchers are more likely to pen scientific papers with co-authors of the same gender, a pattern not solely due to gender representation across disciplines and time, according to joint research from Cornell and the University of Washington.

Vaginal immune mediators ramp up after first sexual intercourse

In adolescent girls and young women from Kenya, Belgium, and the US, cervicovaginal immune mediators increase in the months following first penile-vaginal intercourse.

Vaginal immune system may hint at prime vaccine timing