In a modified version of the mirror self-recognition experiment, eastern garter snakes showed signs that they recognize their own scent. Mark Nenadov via Flickr under CC BY 2.0 DEED For decades, ...

A two-way mirror, also called a one-way mirror, is a pane of glass that acts like a regular mirror on one side while allowing someone to see through from the other side. It’s commonly used in ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. For decades, self-awareness has been guarded as a very ...

A mirror usually feels like the simplest object in the room until you come across one in a hotel, restroom, or fitting area and feel a twinge of doubt. That reaction isn’t random. Some mirrors are ...