The majority of Earth’s species are long gone. Even so, most people remain fascinated by such creatures, especially the really weird ones. In recent years, several unique fossils have surfaced. They brought new surprises in animal behavior, looks, and evolution. Some were just plain bizarre, while others, millions of years old, gave first-time looks at

“Filibuster.” The word sounds like the name of some sort of nasty sea creature from medieval times. But it actually comes from the 18th-century word flibustier, which was used to describe vicious pirates who attacked Spanish colonies. A filibuster is a political strategy that takes advantage of a rule in the US Senate that allows

The thought of having a stranger secretly living in your home sounds like the stuff of nightmares and horror movies. Some people have found unwelcome guests living in their homes, though. Most of these interlopers live in attics, although they will sometimes occupy the basements or closets or even live under the house. Some lived