Research is underway to learn more about the origins of medieval sword found earlier this month at the bottom of a Polish river, which some experts believe may have belonged to the Vikings.

Paleontologists have discovered a fossil belonging to an ancient saber-toothed creature that is thought to be the first cat-like predator to ever exist in the U.S.. The fossil, found at the ...

Researchers who've analyzed the complete mitochondrial genomes from ancient samples representing two species of saber-toothed cats have a new take on the animals' history over the last 50,000 years.

Research is underway to learn more about the origins of medieval sword found earlier this month at the bottom of a Polish river, which some experts believe may have belonged to the Vikings. The ...

WŁOCŁAWEK, Poland — Research is underway to learn more about the origins of medieval sword found earlier this month at the bottom of a Polish river, which some experts believe may have ...