“The Challenge!” Young boy relishes in a game of tug of war before school. Photo location: Lake Titicaca, Peru. (Photo and caption by Paul Heyman/National Geographic Photo Contest)

Large trumpet vines spread across electrical lines next to a highway in Kinston, N.C., on June 23, 2014. (Photo by Janet S. Carter/Kinston Free Press via AP Photo)

A Selkirk Rex cat is one of more than 400 breeds of cats being presented at the World Cat Federation two-day show in Dortmund, Germany, on April 21, 2013. (Photo by Frank Augstein/Associated Press)

Fishermen prepare marlin and sailfish, destined for Jakarta, for auction at a fish market in Tegal, Central Java November 26, 2014 in this photo taken by Antara Foto. (Photo by Oky Lukmansyah/Reuters/Antara Foto)

Survivors pass by two large boats after they were washed ashore by strong waves caused by Typhoon Haiyan in Tacloban city, Leyte province central Philippines on Sunday, November 10, 2013. Typhoon Haiyan, one of the strongest storms on record, slammed into six central Philippine islands on Friday leaving a wide swath of destruction and hundreds of people dead. (Photo by Aaron Favila/AP Photo)

“The Giant's Causeway is an area of about 40,000 interlocking basalt columns, the result of an ancient volcanic eruption. It is located in County Antrim on the northeast coast of Northern Ireland, about three miles (4.8 km) northeast of the town of Bushmills. It was declared a World Heritage Site by UNESCO in 1986, and a National Nature Reserve in 1987 by the Department of the Environment for Northern Ireland”. – Wikipedia

Photo: Visitors walk on the Giant's Causway on March 14, 2012 in Portrush, Northern Ireland. (Photo by Peter Macdiarmid/Getty Images)

“A topless women's rights activist hacked down a Christian cross in the Ukrainian capital Kiev with a chain saw on Friday in protest at the prosecution of the Russian feminist punk band, p*ssy Riot”. – Reuters. (Photo by FEMEN)

“The finless porpoise (Neophocaena phocaenoides) is one of six porpoise species. In the waters around Japan, at the northern end of its range, it is known as the sunameri. A freshwater population found in the Yangtze River in China is known locally as the jiangzhu or «river pig»”. – Wikipedia

Photo: A newly born Yangtze finless porpoise (top) swims with his mother at the Hydrobiology Institute of the Chinese Academy of Sciences on June 3, 2007 in Wuhan of Hubei Province, China. (Photo by China Photos/Getty Images)