A penguin swims in its enclosure during a photocall to promote London Zoo's annual stock take of animals on January 4, 2012 in London, England. The zoo's stocktake takes place annually, and gives keepers a chance to check on the numbers of every one of the animals from stick insects and frogs to tigers and camels. (Photo by Dan Kitwood/Getty Images)

New York's famed Empire State Building hosted new guests on Saturday night as images of endangered animals were flashed across its facade.

“Sniff out the Appenzell Cheese”. Alexander Hunter, 30, of Greenwich, Conn., took this photo in Appenzell, Switzerland, in September 2014. (Photo by Alexander Hunter)

Sea lion “Jay” paints a Chinese character reading “the Serpent” at the Hakkeijima Sea Paradise aquarium in Yokohama, suburban Tokyo on January 3, 2013. The event, marking the forthcoming Chinese lunar calender year of the snake was held as part of a New Year's attraction. (Photo by Kazuhiro Nogi/AFP Photo)

Young female Ibex on the fork of Disteis (2,200 m), near the top of the Jof di Montasio (Friuli, Italy). (Photo by Stefano Zocca)

French artist Charlotte Caron makes very interesting paintings. For the works, a combination of photography and painting, she paints animal heads looking like some sort of masks over the faces of photo-portraits that she takes herself.

A baby rhesus macaque (Macaca mulatta) looks up as it plays with a tiger cub at a zoo in Hefei, Anhui province, August 2, 2012. (Photo by Jianan Yu/Reuters)

Chinese woman Duo Zirong feeds stray cats at her home February 14, 2006 in Shanghai, China. Duo Zirong, a Daur ethnic minority group woman from Inner Mongolia and reported as the “Cat Woman”, has housed about 300 cats with her Shanghainese husband Liu Junluo and mother-in-law. (Photo by China Photos/Getty Images)