Two pals took turns shooting each other in the head with a rifle while wearing kevlar helmets inside a home — with one man now being charged with the other’s murder, according to authorities. Sean ...

Two friends took turns shooting each other in a helmet in Houston, then one man died, the sheriff said. Muhammad Farhad Getty Images/iStockphoto A man in Houston and a friend took turns shooting each ...

New research shows southern resident killer whales grooming each other using kelp they’ve modified, and researchers think it’s the first time researchers have documented marine mammals making tools.