Around 66 million years ago, a six-mile-wide asteroid hit Earth, triggering the extinction of three-quarters of all living ...

Researchers analyzed fossils and DNA to get a big-picture view of sloth evolution and determine what drove their immense size ...

Using the latest scientific techniques, researchers have been able to refine their estimates made in 2011, when they reported that the mass extinction happened in ... Traps in Russia to see how the ...

The end of Permian mass extinction occurred 251.9 million years ago, marking the close of a geological period known as Permian. This extinction event is known as the greatest mass extinction recorded ...

which includes two people he allegedly fired at but missed during the mass shooting on the Tallahassee campus on April 17. Based on previous reports and the new details revealed in the grand jury ...

The 22-page criminal complaint filed against Rupnow prior to his arrest early Thursday morning sheds more light on what happened leading up to the mass shooting and in the police investigation that ...

Photo credit: Rbkform/GettyImages Source: Getty Images A groundbreaking study conducted by NASA and Tōhō University in Japan revealed a precise timeline for the sun ... leading to mass extinction.

Timeline:2010: Steward's predecessor buys Caritas Christi hospital system. 2011: Steward buys Quincy Medical in bankruptcy court. June 29, 2013: Filthy conditions, neglected patients found at ...

The shooting was among 97 mass shootings so far this year in the United States, with four or more people wounded or killed, not including shooters, according to Gun Violence Archive. Bystander ...

One mechanism that could cause these punctuated bursts is the recolonization of changing and deserted niches after mass extinction events. Furthermore, paleontological studies have shown that there is ...

This helped their system pinpoint the scenarios that best matched the fossil and rock records left behind after the mass extinction. The extinction itself—known as the K–Pg event—shattered ...