Tux/Citable Version
Tux the penguin is the mascot for the Linux operating system, originally drawn by Larry Ewing.
History
In 1996, a discussion was started on the Linux kernel mailing list of what to use as the Linux logo. Early on, some proposed that it should be a fierce animal. Linus Torvalds, the project coordinator, however, was chose the penguin because he is very fond of them. Soon afterwards, a hacker named Alan Cox suggested that the logo should be "a picture of the BSD daemon flat out on the floor with stars around its head and a penguin in boxing gloves standing on top". Not liking the notion of officially endorsing a mockery of another system, Linus posted his favorite penguin image and imperatively stated that the concept was final, and requested that someone with artistic skills draw a similar image under an appropriate license.
The name
Early on, some referred to the penguin as 'Linnie'. This did not last for long, however, as the name 'Tux' caught on. Contrary to popular belief, the name 'Tux' is not short for tuxedo. Linus actually created the name to stand for Torvalds Unix.
Tux in popular culture
Tux has shown in a number of magazines and television broadcasts, and much paraphernalia, from dolls, such as the own shown in this article, to articles of clothing. Because it is one of the most popular search results for "penguin" on Google Images, it has also been used in many home and small business projects, such as fliers and newsletters. Tux has also been portrayed as a symbol of a person's geekiness. It can often be found in computer gaming magazines, laying on a user's desk even whilst the person pictured is running Microsoft Windows.
Variants
Tux is not a mere static logo. From the beginning, the image was meant to be played with and re-drawn in a "goofy" manner. Popular versions include that in the Crystal icon set, the Slackware logo, which features Tux smoking a pipe, and that of PaX, which displays Tux as a viking. The Crystal Tux has been shown depicting him as many things, such as a skateboarder and a ninja.