A man rides a horse through a bonfire on Jan. 16, 2012 in the small village of San Bartolome de Pinares, Spain. In honor of San Anton, the patron saint of animals, horses ride through the bonfires on the night before the official day of honoring animals in Spain. (Jasper Juinen/Getty Images)

Pakistani fruit vendor Abdul-Jabbar Khushee, 23, wraps himself with a shawl against the cold while sitting on his cart and waiting for customers at a roadside on the outskirts of Islamabad, Pakistan, Jan. 17, 2012. (Muhammed Muheisen/AP Photo)

A man walks past a store front display as he trudges through the falling snow, Jan. 17, 2012, in Des Moines, Iowa. (Charlie Neibergall/AP Photo)

Father Juan Manuel Villar blesses a dog during the feast of San Anton, the patron saint of animals, at the San Anton church on Jan. 17, 2012 in the center of Madrid, Spain. San Anton is honored by many Catholic churches in Spain where thousands of animal lovers flock to their nearest place of worship to have their animals blessed. (Jasper Juinen/Getty Images)

Republican presidential candidate, former Pennsylvania Sen. Rick Santorum arrives at the USS Yorktown, Jan. 17, 2012, in Mount Pleasant, S.C. (Matt Rourke/AP Photo)

Hindu devotees hold their saris to dry after taking a dip in the Sangam, during the religious fair of Magh Mela in Allahabad, India. Hundreds of thousands of devout Hindus take a bath at the confluence during the 45 day celebration, known as "Magh Mela", to rid themselves of their sins and attain prosperity, Jan. 16, 2012. (Rajesh Kumar Singh/AP Photo)

An 11-year-old bison at Brookfield Zoo, plays with a seasonal fir tree, Brookfield, Ill. The tree, which was one of more than 400, was used to decorate the zoo during its annual Holiday Magic festival, Jan. 16th 2012. (Jim Schulz/Chicago Zoological Society/AP Photo)

Flood affected residents sit outside their damaged home on Jan. 17, 2012 in Iligan, Mindanao, Philippines. Filipino flood victims are trying to rebuild their lives after tropical storm Washi claimed more than one thousand lives in the south of the region on Dec. 16, 2011 after a month's worth of rain fell in 24 hours. (Jeoffrey Maitem/Getty Images)

Indian bull tamers run to avoid a bull during Jallikattu, a bull-taming sport played as part of the harvest festival of Pongal, in Palamedu, approximately 575 kilometers (357 miles) south of Chennai, India, Jan. 17, 2012. (Arun Sankar K.//AP Photo)

Indian soldiers ride camels in the fog in preparation for Republic Day celebrations near the Presidential Palace in New Delhi, India, Jan. 17, 2012. India marks Republic Day on Jan. 26, 2012. (Kevin Frayer/AP Photo)