Erotic members-only club Snctm in Los Angeles, California, USA on January 28, 2017. A masqued black-tie dinner that evolves over the course of the night from amuse bouche to what founder, Damon Lawner, calls “erotic theater”, where female performers. Some guests engage, some engage only with each other (while women can buy a ticket, men cannot attend unless they’re members ($10,000-$50,000), part of a couple, or reserve dinner), and others choose not to touch at all. The monthly event at a Holmby Hills mansion is not a sеx or swingers party, but instead is about exploring the boundaries of what sеx means, and how it inherently makes us all feel. (Photo by Elizabeth Lippman)

Shepherds from the north wear their traditional heavy woollen mantles as they stand ready to shear sheep with sycthe-like shears. (Photo by Three Lions/Getty Images). Circa 1952

A freshwater stingray pup looks out from a holding tank at Bristol Zoo's aquarium on January 20, 2012 in Bristol, England. (Photo by Matt Cardy/Getty Images)

Lightning streaks across the sky as lava flows from a volcano in Eyjafjallajokul April 17, 2010. (Photo by Lucas Jackson/Reuters)

A woman looks out from her stall selling traditional garments and textiles at a market in Ashgabat February 8, 2012. (Photo by Aman Mehinli/Reuters)

FaceResearch.org, a site run by two psychologists at the University of Aberdeen in Scotland, features software that can average together faces from thousands of photos. These images purportedly show the average face of women from 40 different nationalities.