Adele Clark, aged 8, looks at an animatronic Gallimimus dinosaur at the Natural History Museum on April 20, 2011 in London, England. The Age of the Dinosaur is a summer exhibition combining animatronic models, fossils and CGI film footage. (Photo by Matthew Lloyd/Getty Images)
A woman rides a mechanical bull before participating in the 4th annual Running of The Bulls October 15, 2011 in Cave Creek, Arizona. (Photo by Joshua Lott/Getty Images)
A Thai woman walks through the deep flooded streets October 21, 2011 in Pathumthani on the outskirts of Bangkok, Thailand. (Photo by Paula Bronstein/Getty Images)
Sumatran tiger Jumilah is seen with one of her cubs on display at Taronga Zoo on October 25, 2011 in Sydney, Australia. The Sumatran tiger cubs, born in August to mother Jumilah, will meet the public for the first time this week. (Photo by Mark Kolbe/Getty Images)
Director Don Hahn attends “The Lion King 3D” Premiere during the 6th International Rome Film Festival on November 4, 2011 in Rome, Italy. (Photo by Getty Images/Getty Images)
NEW YORK - SEPTEMBER 19: Aisha Tyler attends Worldwide Launch of 'Gears of War 3' for Xbox 360 at Best Buy Theater on September 19, 2011 in New York City. (Photo by Jemal Countess/Getty Images for Xbox)