The year is 2012, and the March of the Big Cats continues. Apple is about to release Mountain Lion, the latest iteration of (Mac) OS X, and citizens of the Appleverse are eager to explore what this new feline has to offer. How far we’ve come in just over a decade. Back in 2001 Apple introduced their new, long awaited replacement to the Classic Macintosh System Software: Mac OS X. As Mountain Lion goes on the prowl, Cult of Mac reviews the Evolution of OS X and once again presents our look back at Apple’s Big Cats over the years – from Cheetah and Puma through to Apple’s current Felidae offerings.