Larry the Cow

Larry the Cow
The renowned Larry the Cow

Larry the Cow is the unofficial mascot^[1] of Gentoo, they were originally created by a user called Nefarius.^[2]

Since Larry is a male, a few people argue that they should be called Larry the Bull instead, however a bug report was filed and no action was taken.^[3]
Larry can be found in emerge by running "emerge --moo", Larry can also be found in apt by running "apt moo".