The Arabian developed in a desert climate and was prized by the nomadic Bedouin people, often being brought inside the family tent for shelter and protection from theft.
It's a trim-fitting insulating jacket that can be worn as a layer under a hard shell to provide warmth, or by itself as a wind and water-resistant jacket.
An international investigation into the network began when police in Australia linked a number of Facebook accounts containing indecent images of children to a user in the UK.
It included a brief item about a former classmate: "Kate L. teaches part-time at the University of Oklahoma and is assistant principal at County High School."
And the drag-and-drop interface you use to toss people into one Circle or another has a pleasing playfulness absent from Facebook's "Edit Friends" page.