The Intel logo is projected on the face of Intel Executive Vice President Dadi Perlmutter as he speaks during a news conference about the 3-D Tri-Gate transistors called “Ivy Bridge” on May 4, 2011 in San Francisco, California. Intel announced a technical breakthrough in the microprocessors with the world's first Tri-Gate transistors, that will increase speed and consume less energy. (Photo by Justin Sullivan/Getty Images)

Professional dog walker Jon Lovette of Jonny Walkers walks with dogs at Crissy Field on October 19, 2011 in San Francisco, California.

A group of Ring Tailed Lemurs eat from a Thanksgiving spread at the San Francisco Zoo on November 23, 2011 in San Francisco, California. Fifteen lemurs at the San Francisco Zoo were treated to a Thanksgiving feast of green beans, a fruit salad made up of apples, bananas, grapes sweet potatoes and a turkey made out of monkey chow. (Photo by Justin Sullivan/Getty Images)

The coffin containing the body of Pope John Paul II is exhumed ahead of his beatification at Vatican Basilica on April 29, 2011 in Vatican City, Vatican. Pope John Paul II will be beatified by Benedict XVI in a ceremony at the Vatican on Sunday. (Photo by Pool/Getty Images)

Pope Francis waves as he arrives at the Kangemi slums on the outskirts of Kenya's capital Nairobi, November 27, 2015. (Photo by Goran Tomasevic/Reuters)

A parishioner of the St. Joseph the Worker Parish in Nairobi's Kangemi slum carries the vestments to be worn by Pope Francis during his visit to Kenya on November 24, 2015 in Kenya. Pope Francis makes his first visit to Kenya on a five day African tour that is scheduled to include Uganda and the Central African Republic. Africa is recognised as being crucial to the future of the Catholic Church with the continent's Catholic numbers growing faster than anywhere else in the world. (Photo by Nichole Sobecki/Getty Images)

Suspension artist and LUSH Cosmetics employee Alice Newstead inspects shark hooks that she had pierced into her skin during a demonstration against the shark fin trade at a LUSH Cosmetic store on August 24, 2011 in San Francisco, California.

Sixty-eight year old cross-country runner Rosie Swale-Pope is interviewed while sitting in her cart, “The Icebird”, in Upperville, Virginia March 13, 2015. Swale-Pope, who is from Great Britain and once ran an unsupported 20,000 mile run around the globe, is currently running across the United States from New York City to San Francisco in support of cancer research. (Photo by Gary Cameron/Reuters)