Coincident with the rise of the dinosaurs, a large landmass filled most of the Arctic circle, potentially contributing to ...

When astronomers search for worlds that could possibly host life, they’re operating off of just one example: Earth. So far as we can tell, our specific cocktail of nitrogen, oxygen, and other trace ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. When dinosaurs ...

Prefer Newsweek on Google to see more of our trusted coverage when you search. Paleontologists have uncovered a previously unknown prehistoric mammal species that was among the largest of its time.

Step back in time to the Mesozoic Era, where dinosaurs ruled the Earth. With this quiz, you’ll encounter iconic giants like the T. Rex and the Stegosaurus, clever predators like the Velociraptor and ...

When dinosaurs roamed Earth, their surroundings looked very different than the world of today. But there were also some similarities. And now scientists have confirmed a new one: Diverse firefly ...

New view of early bird diversification, showing the emergence of pygostyle and U-shaped furcula in the Late Jurassic and the occurrence of crown-group birds (Aves) in the Cretaceous. The timing of the ...

The Mesozoic era, traditionally renowned as the age of dinosaurs, also marks a period of remarkable innovation in the evolution of early mammals. Mammaliaforms diversified into a variety of ecological ...

When searching for exoplanets with potentially habitable atmospheres, astronomers really only have Earth as an example of what to look for. But a new study says that a past era of Earth may be a ...