Fossil jaws show early bears like Ursus minimus balanced meat and plants, revealing adaptability that shaped modern species.

Last year, right around my birthday, I took a trip to the Great Smoky Mountains for the first time. My day began with a hike on a quiet trail, breathing in the crisp mountain air, when I heard the ...

Marine food webs are highly complex. Until now, researchers have been unable to understand exactly how they are affected by climate change, overfishing and other threats. Scientists at the ...