Dr. Marius Kruger (C) and memeber of the Kruger National Park keeps the head of a rhino up during a white rhino relocation capture on October 17, 2014. The Kruger National Park relocated four rhinoceros from a high risk poaching area to a safer area as part of ongoing strategic rhinoceros management plan. (Photo by Stefan Heunis/AFP Photo)

Festival-goers enjoy the mud during the annual Boryeong Mud Festival at Daecheon Beach on July 18, 2015 in Boryeong, South Korea. The mud, which is believed to have benefical effects on the skin due to its mineral content, is sourced from mud flats near Boryeong and transported to the beach by truck. (Photo by Chung Sung-Jun/Getty Images)

South Korean environmentalists participates in a rally held to commemorate the Fukushima nuclear disaster on the eve of the one year anniversary of Japan's earthquake and tsunami on March 10, 2012 in Seoul, South Korea. Currently four nuclear power plants are in operation in South Korea while the government plans to increase the number of reactors to 32 by the year 2021. (Photo by Chung Sung-Jun/Getty Images)

In this February 19, 2014 photo, a skate seller puts slices of skate into styrofoam boxes for shipment to customers around South Korea at a fish market in Mokpo, a port city on the southwestern tip of the Korean Peninsula. The aroma of one of southwestern South Korea's most popular delicacies regularly gets compared to rotting garbage and filthy bathrooms. And that's by fans. The unusual dish is typically made by taking dozens of fresh skate, a cartilage-rich fish that looks like a stingray, stacking them up in a walk-in refrigerator and waiting. Up to a month in some cases. (Photo by Ahn Young-joon/AP Photo)

An enormous crocodile mauls a young hippo calf carcass near Lower Sabie on May 11, 2014, in Kruger National Park, South Africa. An enormous crocodile tosses around a young hippo calf caught in its lethal jaws. The giant reared out of the water revealing a young hippo calf between its teeth. The huge beast then span, jumped and splashed in the water with the small carcass. Amateur photographer Roland Ross captured these incredible photographs near Lower Sabie in Kruger Park, South Africa. (Photo by Roland Ross/Barcroft Media)

Participants in the Miss Pole Dance South America 2013 competition pose in front of the obelisk in Republica Square in downtown Buenos Aires on November 22, 2013 ahead of the contest to be held on November 23 and 25 in the city. (Photo by Juan Mabromata/AFP Photo)

A newly-married couple takes a nap before their mass wedding ceremony at the CheongShim Peace World Center in Gapyeong, South Korea, Sunday, February 17, 2013. Some 3,500 South Korean and foreign couples exchanged or reaffirmed marriage vows in the Unification Church's mass wedding arranged by Hak Ja Han Moon, a wife of the late Rev. Sun Myung Moon, the controversial founder of the Unification Church. (Photo by Lee Jin-man/AP Photo)

A woman react inside a cloud of paint powder during the holi one colour Festival held in the city of Cape Town, South Africa, Saturday, March 2, 2013. Thousands of people are taking part in the festival by throwing coloured paint powder at each other to express freedom and the colour of everyday life. (Photo by Schalk van Zuydam/AP Photo)