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 ...

Stunningly preserved fossils of reptilian footprints and underbellies discovered last year in the Italian Alps have helped ...

Revealed by melting snow in the Alps, the imprints in rock were left by reptiles and amphibians during the Permian period, ...

The Fish and Wildlife Service seeks public comment on listing the Pecos pupfish as threatened, raising concerns for Texas and ...

The U.S. Fish and Wildlife Service is seeking public comment on listing the Pecos pupfish as a threatened species, impacting ...

A hiker in the Alps discovers 280-million-year-old fossilized tracks, revealing a lost prehistoric ecosystem and offering ...