Tux the penguin, mascot for the Linux computer operating system, has let his weight balloon to dangerous levels, say close friends.

"He's had a productive month on the CryptoGate project, but he really needs to get out and exercise" says Larry Scott, lead developer of the open-source CryptoGate software project.

"All he does is sit on his fat ass in front of the computer, typing and eating herring" says colleague David Mothman. "His place is disgusting. He never cleans. He should move back in with his mom. Has anyone ever seen him doing any physical activity?"