A latecomer bull tries to gore a runner, known as 'mozos', during the third bull run of the Sanfermines, in Pamplona, Spain, July 9. The third bull run has been the longest and the roughest, with seven injured people.

A reveler is tossed by a cow in the bull ring, at the end of third running of the bulls at the San Fermin fiestas, in Pamplona northern Spain, July 9.

Revelers sleep on the ground during the early hours on the third day of the San Fermin running of the bulls on July 9 in Pamplona, Spain. Pamplona's famous Fiesta de San Fermin, which involves the running of the bulls through the historic heart of Pamplona for eight days starting July 7th, was made famous by the 1926 novel of U.S. writer Ernest Hemmingway called 'The Sun Also Rises.'

A reveler is tossed by a Dolores Aguirre Yabarra ranch fighting bull during the running of the bulls of the San Fermin festival, in Pamplona Spain, July 7.

Revellers taunt a fighting cow in the Plaza de Toros following the first running of the bulls of the San Fermin festival in Pamplona July 7.

A fighting cow leaps over bull runners in the Plaza de Toros following the first running of the bulls of the San Fermin festival in Pamplona July 7. After the bull run, runners remain in the bullring and small fighting cows are released.

Revelers kiss in the early morning, during the San Fermin festival, in Pamplona Spain, July 7.

People raise scarves and candles as they sing the 'Pobre de Mi' song, marking the end of the San Fermin festival on July 14 in Pamplona, Spain. Pamplona's famous Fiesta de San Fermin involves fighting bulls running through the historic heart of Pamplona.

Revellers raise red scarves and candles as they sing the 'Pobre de Mi' song, early in the morning on July 15.

A man prays a prayer next to the candles at Pamplona Council Square on July 14.

"Gigantes" (Giants) dance during a farewell ceremony on the last day of San Fermin festival's "Comparsa de gigantes y cabezudos" (Parade of the giants and the big heads) in Pamplona July 14.

A child kisses a "Gigante" (Giant) during a farewell ceremony on the last day of San Fermin festival's "Comparsa de gigantes y cabezudos" (Parade of the giants and the big heads) in Pamplona on Thursday, July 14. Enormous puppets accompanied by brass bands parade daily through the city during the nine-day-long festival made popular by U.S. writer Ernest Hemingway.

"Cabezudos" (Big Heads) mingle with revellers during a farewell ceremony on the last day of San Fermin festival's "Comparsa de gigantes y cabezudos" (Parade of the giants and the big heads) in Pamplona on Thursday.

Revelers are surprised by an angry leading ox, used to drive the fighting bulls during the running of the bulls at the San Fermin festival in Pamplona, Spain on July 7.

A 'mozo' or runner is turned round by a young bull at Pamplona's bullring after finishing the first run of the 2011 San Fermines festival on July 7.