The retention of lactase persistence into adulthood is an example of such recent evolution. Recent human evolution seems to have been largely confined to genetic resistance to infectious disease that have appeared in human populations by crossing the species barrier from domesticated animals.
Stands for White People Shit. Describes a wide variety of things ranging from mountain climbing to Michael Bolton to Dr. Phil to tiny watercress sandwiches. People of all races can enjoy WPS, but it's something that is intrinsically White People Shit.
Most files with the WPS file extension are likely Microsoft Works Document files, but the Kingsoft Writer software also produces these types of files. The Microsoft Works Document file format was discontinued by Microsoft in 2006, when it was replaced by Microsoft's DOC file format.