Researchers have reexaminated a mammoth ivory boomerang that was discovered in Obłazowa cave in Poland in 1985.

President Joe Biden, in Poland after his lightning trip to Ukraine, is declaring that there are "hard and bitter days ahead" in fighting off Russia's invasion. Full Episode Friday, Jun 13 ...

The boomerang, found in a cave in southern Poland, may be the oldest in the world, dating back 40,000 years, according to researchers.