Outside the Den Hartog farm in Abcoude, Netherlands, a cow jumps around in the meadow on March 20, 2009, the day it was allowed to go outside for the first time since autumn. #

A calf wears a mask to protect from ash after Peru’s Ubinas volcano sent smoke and ashes to the town of Ubinas, in the Moquegua region, on April 19, 2006. #

Cows run and prance as they enter a meadow of a farm in Westzaan, Netherlands, after spending the entire winter inside a stable, on March 20, 2014. #

A steer tries to get through a crowd of runners at the entrance to the bull ring during the first running of the bulls of the San Fermin festival in Pamplona on July 7, 2013. #

Japanese bride and groom Arisa Chi and Kenji Yoshida have their photo session interrupted by a cow after their wedding ceremony on the foggy Mount First in the Swiss Alpine resort of Grindelwald on August 6, 2010. #

A cow jumps over a Filipino navy soldier during the Philippine-U.S. joint naval training exercise in the town of San Antonio, Zambales province, northern Manila, Philippines, on October 9, 2015. #

An escaped cow runs loose on the streets of central Lausanne, Switzerland, on May 17, 2007. The cow escaped during transportation and covered many kilometers from the countryside to the city center, causing mild disruption. She was eventually shot with a tranquilizer dart, restrained at a busy crossroads, and collected by her farmer. #

A cow stands in her pen at the National Institute of Agricultural Technology in Castelar, on the outskirts of Buenos Aires, in this picture taken on July 4, 2008. Argentine scientists are taking a novel approach to studying global warming, strapping plastic tanks to the backs of cows to collect their burps. Researchers say the slow digestive system of cows makes them a producer of methane, a potent greenhouse gas that gets far less public attention than carbon dioxide in efforts to fight global warming. #

A kitesurfer sails on a downwind run on the waves of the Mediterranean Sea as cows rest on the shore near the town of Ulcinj, Montenegro, on May 19, 2015. #

Israeli soldiers drive an armored personnel carrier past a cow during training in the Israeli-controlled Golan Heights, near the border with Syria, on March 9, 2015. #

Regina Mayer jumps with her cow, Luna, over a hurdle in Laufen, Germany, on March 29, 2011. When Mayer's parents dashed her hopes of getting a horse, the 15-year-old didn't go sulk in her room. Instead, the resourceful teen turned to a cow called Luna to make her dream come true. Hours of training and tons of treats, cajoling, and caresses later, the results are impressive. Not only do the two regularly go on long rides together through the southern German countryside, they even do jumps over a homemade hurdle of beer crates and painted logs. #

Livestock apprentice Melissa Sinclair and stockman Matt Auld prepare seven-year-old Maisie, a Highland cow, ahead of the International Highland Cattle Show held at Pollok Country Park on September 15, 2011, in Glasgow, Scotland. #

Farmer Andrew Melick is knocked down and run over by one of his cows after it got free from its trailer on December 4, 2007, along Mahoning Creek in Danville, Pennsylvania. #

A cow walks through water in front of the submerged St. Nicholas Church in Mavrovo Lake, some 100 kilometers west of Skopje, Republic of Macedonia, on June 14, 2014. The church was intentionally flooded in 1957, during the creation of an artificial lake designed to supply water to a local power plant. #

Two cows traditionally decorated for the so-called Desalpe are pictured in Charmey, near Bulle, Switzerland, on September 25, 2010. The Desalpe is the customary annual procession when cows are led back to the plains at the beginning of autumn after grazing during the summer months on mountain pastures. #