

A Yemeni girl held by her father chants slogans along with antigovernment protesters during a demonstration demanding the resignation of Yemeni President Ali Abdullah Saleh, in Sanaa, Yemen, on April 27. Muhammed Muheise/AP
US tennis champion Serena Williams contemplates, as her father Richard looks on, during a break in play against Russia's Vera Zvonareva during their second round single tennis match at the Eastbourne International grass court tournament in Eastbourne, England, on June 15. Sang Tan/AP
Kate Middleton arrives with her father Michael Middleton at Westminster Abbey before her marriage to Britain's Prince William in London on April 29. Suzanne Plunkett/AP/File
Dressed in the purple colors of the Colorado Rockies, MacKenzie Roark rides in a baby carrier worn by her father, Greg, as they watch the Rockies at batting practice in Denver on April 9, 2010. David Zalubowski/AP/File
Expectant mom Ali Landry and celebrity dads (from l.) Drew Lachey, Shonn Greene, and James Van Der Beek join Pampers at the 'First Father’s Day Cook-Out' celebration in New York on June 16. Diane Bondareff/AP
Nikolas sits on his father's shoulders and waves as his father shouts slogans in front of the Greek Parliament during a peaceful rally in Athens on May 29. Kostas Tsironis/AP
Tyson Chandler II sits atop the shoulders of his father, Dallas Mavericks' Tyson Chandler, during the NBA basketball team's victory parade in Dallas on June 16. The Mavericks defeated the Miami Heat for the NBA championship title. G.J. McCarthy/The Dallas Morning News/AP
Cory Higgins (r.) looks back at his father, Rod Higgins, president of basketball operations for the Charlotte Bobcats, during a pre-draft workout for the NBA team in Charlotte, N.C., on June 16. Chuck Burton/AP
Boston Bruins' Tim Thomas looks up at his father Tim and mother Kathy as he holds on to the Conn Smythe Trophy following his team's win over the Vancouver Canucks in Game 7 of the NHL Stanley Cup final at Rogers Arena in Vancouver, British Columbia, Canada, on June 15. Jonathan Hayward/The Canadian Press/AP
Catherine, Duchess of Cambridge, watches as her husband Prince William and father-in-law Prince Charles (r.) pass in a procession during the Order of The Garter Service in Windsor, England, on June 13. Kirsty Wigglesworth/Reuters
Venus Williams prepares to leave the practice court as her father Richard Williams looks on before her second round single tennis match at the Eastbourne International grass court tournament in Eastbourne, England, on June 15. Sang Tan/AP
Macy Grace Miles sings 'Amazing Grace' as her father, LSU football head coach Les Miles, looks on at a local LSU Alumni Association luncheon at East Ridge Country Club in Shreveport, La., on June 14. Greg Pearson/The Times/AP
Paul Hardesty follows behind his father, Blair, with his toy lawn mower as he pretends to help cut the grass in front of their Springfield, Ohio, home on May 9. Bill Lackey/Springfield News-Sun/AP
Junrey Balawing, 22 inches tall, is carried by his father Reynaldo in Sindangan, Zamboanga del Norte, in southern Philippines on June 11. The Guinness World Records recognized Mr. Balawing as the new 'Shortest Living Man' on his 18th birthday on June 12. Erik de Castro/Reuters
Samin grabs the face of his father, Peru's president-elect Ollanta Humala, as Mr. Humala was interviewed on the patio of his home in Lima, Peru, on June 5. Karel Navarro/AP
President Barack Obama says goodbye to his family, from left: mother-in-law Marian Robinson, first lady Michelle Obama, and daughters Sasha and Malia, at Cape Canaveral, Fla., as he continued on to Miami and they returned to Washington on April 29. Charles Dharapak/AP/File