That genetic traces of the original population disappear completely is unusual, especially in South America,” said geneticist ...

"Up to this point, we didn't believe there was any other lineage that would appear in South America," said archaeologist ...

Russian President Vladimir Putin is stalling at the peace table while preparing a new military offensive in Ukraine, two senior U.S. senators warned Sunday, arguing that the next two weeks could shape ...

Toilet access, litter clean-up and fire risk monitoring all have been taken on by local groups as federal resources founder.