Since at least the 1970s, one or more white-furred squirrels have roamed Tappan Square. In recent years, at least one of these squirrels (currently there are believed to be three) has been definitively shown to be albino. The white-furred squirrel(s) has been called 'albino' by students since at least the late 90s, although it is uncertain if the squirrels around at the time were actually albino, leucistic, or just white.
In 2011, an albino squirrel had a cameo in the Friday video.
Not to be confused with the obese orange squirrel, another freak of nature known to roam the grasses of Tappan Square.