Everything you need to know about how to have fun with this Easter Egg, which is even better in more recent versions of macOS.
Easter egg
Clarus the Dogcow in the Emoji & Symbols viewer, marijuana in the Chess app, Apple’s copyright notice in a kernel extension, and more Easter eggs in your Mac.
How a dogcow from Cairo came to grace the Page Setup dialog in Classic Mac OS, was retired for Mac OS X, and has made a comeback since Ventura.
Click on the amber button at the top left of a window to minimise it into the Dock. And you have a choice of four speeds.
Hidden deep in domain names are the lyrics to a Joss Whedon song, from an Internet musical.
The Eclectic Light Company 