Participants in costumes attend the first day of the annual Wave-Gotik Treffen, or Wave and Goth Festival, on May 17, 2013 in Leipzig, Germany. (Photo bilderkiste)

Cat Beards is a photo fad in which people pose with their cats, in such a manner so that the cat appears to be a beard.

Cat-Friend vs Dog-Friend, Two Humans Acting Like House Pets

A giant shoe is pictured outside a life-size “Barbie Dreamhouse” of Mattel's Barbie dolls in Berlin, May 15, 2013. The life-sized house, covering about 1,400 square metres offers visitors to try on Barbie's clothes in her walk-in closet, tour her living room and her kitchen. (Photo by Fabrizio Bensch/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.

“The Africanis is a landrace of South African dogs. It is believed to be of ancient origin, directly descended from hounds and pariah dogs of ancient Africa, introduced into the Nile Valley from the Levant. The Swahili name for the breed is umbwa wa ki-shenzi meaning common or mongrel or “traditional dog”. Africanis is also an umbrella name for all the aboriginal dogs in southern Africa”. – Wikipedia. Photo: Africanis 18. Murraysburg, Western Cape, May 10, 2010. (Photo by Daniel Naudé)

A British fan waits to enter the Malmo arena ahead of the finals of the 2013 Eurovision Song Contest on May 18, 2013. (Photo by John MacDougall/AFP Photo)