Rat Pack Rat Pack The Rat Pack is a term used by the media to refer to an informal group of entertainers centered on the Las Vegas casino scene. Having its origins in a group of friends that met at the Los Angeles home of Humphrey Bogart and Lauren Bacall, by the 1960s, it was the name used by the press and the general public to refer to a later variation of the group that called itself "the Summit" or "the Clan", featuring Frank Sinatra, Dean Martin, Sammy Davis Jr., Peter Lawford and Joey Bishop among others; they appeared together on stage
Rat "Rattus". The best-known rat species are the black rat ("Rattus rattus") and the brown rat ("Rattus norvegicus"). The group is generally known as the Old World rats or true rats, and originated in Asia. Rats are bigger than most Old World mice, which are their relatives, but seldom weigh over in the wild. The term "rat" is also used in the names of other small mammals which are not true rats. Examples include the North American pack rats, a number of species loosely called kangaroo rats, and others. Rats such as the bandicoot rat ("Bandicota bengalensis") are murine rodents related