About 250 million years ago, at the end of the Permian period, something killed some 90 percent of the planet's species. Less than 5 percent of the animal species in the seas survived. On land ...

Toward the end of the Permian period, Earth was reeling from cataclysmic volcanic activity in modern ... a Ph.D. candidate in Earth and planetary sciences, offered a modern analogy with land animals: ...

About 252 million years ago, 80 to 90 percent of life on Earth was wiped out. In the Turpan-Hami Basin, life persisted and bounced back faster.

Toward the end of the Permian period, Earth was reeling from ... offered a modern analogy with land animals: "If someone asked you today where you'd find kangaroos, you'd say Australia," she ...

The Permian-Triassic extinction event ... Where the environment became drier, the forests gave way to vast fern prairies. As animal life began to recover, what emerged on land was not so different ...

A Texas representative wants to remove a rare lizard from the endangered species list, which would pave the way for oil and ...