Add Yahoo as a preferred source to see more of our stories on Google. During ritual ceremonies, the ancient Aztec civilization used a “death whistle” — a haunting instrument shaped like a human skull.

Mountain lions are known by many names: panthers, pumas, cougars, and catamounts, for example. However, there is one moniker that perfectly describes one of their more unusual characteristics: the ...

Here are videos that may help you figure out what those screams you heard in the Mississippi woods were.