Earth looked much different not just millions, but even decades and centuries ago. Many animal species that once existed are ...

Just because a species is presumed extinct doesn’t mean it’s gone forever. Here are four glowing examples of this unique, and felicitous, phenomenon. Not all species that have been classified as ...

The Earth officially lost at least six species this year, according to the IUCN Red List of Threatened Species. The list — an inventory of the global conservation status and extinction risk of ...

"It seemed that the world had stopped turning its gears. Nature surprises us. Finding a species that hasn't been heard of in nearly two centuries doesn't happen every day. It was an incredible moment, ...

MAKAWAO, Hawaii — Five Hawaiian crows on Wednesday were released on Maui for the first time as part of an ongoing effort to return the species to its home, conservationists said. The Hawaiian crows, ...

Researchers have found footprints of large, bone-crushing dogs in the 12 million-year-old Ashfall Fossil Beds in northeastern Nebraska, suggesting these large carnivores may have survived a ...