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.
WPS (Wi-Fi Protected Setup) is a feature allowing devices to more easily connect to Wi-Fi access points without typing in a password which may be quite long. A common way that WPS is implemented involves displaying a secret PIN code on the Wi-Fi access point, and requiring that the same PIN be typed into the device.