mud

A man makes construction bricks from mud at one of several refugee settlements in Dadaab, Garissa County, northeastern Kenya.

Siegfried Modola/Reuters

A man makes construction bricks from mud at one of several refugee settlements in Dadaab, Garissa County, northeastern Kenya.

Festival goers arriving for the Glastonbury Festival, at Worthy Farm in Somerset.  Picture date: Wednesday June 26, 2013.

Yui Mok/PA

Festival goers arrive for the Glastonbury Festival, at Worthy Farm in Somerset, on Wednesday. The 42nd festival will run until June 30, headlined by the Rolling Stones.

People raise their hands for blessing as they attend a mass celebrating the feast day of the Catholic patron Saint John the Baptist in the village of Bibiclat...People, covered with mud and dried banana leaves, raise their hands for blessing as they attend a mass celebrating the feast day of the Catholic patron Saint John the Baptist in the village of Bibiclat, Nueva Ecija, north of Manila, June 24, 2013. Hundreds of devotees took part in this annual religious tradition, which has been held in the village since 1945.

Cheryl Ravelo/Reuters

People, covered with mud and dried banana leaves, raise their hands for blessing as they attend a mass celebrating the feast day of the Catholic patron Saint John the Baptist in the village of Bibiclat, Nueva Ecija, north of Manila. Hundreds of devotees took part in this annual religious tradition, which has been held in the village since 1945.

People throw mud onto each other at a crop field during Hucang Festival at Zhangjiajie, Hunan province June 5, 2013. Hucang Festival is a traditional celebration among local ethnic Tujia people, who believe the muddier a person is after the celebration, the better the harvest he or she will enjoy.

China Daily/Reuters

People throw mud at each other in a crop field during Hucang Festival at Zhangjiajie, Hunan province. Read more

A rider competes during the "Kings of the Off-road" quad bike amateur regional race near the village of Kozhany

Ilya Naymushin/Reuters

A rider competes during the “Kings of the Off-road” quad bike amateur regional race in a boggy district near the village of Kozhany, about 200 km (124 miles) southwest of Krasnoyarsk, in Siberia, on Wednesday.