Twins pose for pictures during a photocall at the German-American Festival in Berlin, on Aug 16, 2012. -- PHOTO: REUTERS
Identical twin sisters Miss Kati (left) and Kaci Anderson from Wibaux, Montana, pose before taking part in a look-alike contest during the final day of the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 5, 2007. -- PHOTO: REUTERS
Identical twin sisters Ms Denise Garzilli (left) and Ms Diane Stillwell from Baldwin, New York, check each others' lipstick for smudges before taking part in a look-alike competition at the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 5, 2007. -- PHOTO: REUTERS
Miss Leah Majeski from Acworth, GA, reaches over to take a french fry from her identical twin sister Sarah before a look-alike contest during the final day of the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 5, 2007. -- PHOTO: REUTERS
Ms Linda Seber from Sheffield, Ohio, lifts her identical twin sister Laura before taking part in a themed dress competition at the annual Twins Days Festival in Twinsburg, Ohio, on Aug 4, 2007. -- PHOTO: REUTERS
Mr Alf Fehnhann (left) and twin brother Sven hold seven-month-old Luis Carl Millgramm (2nd left) and his brother Albert Frank (right) at the third annual twin meeting in Berlin, June 18, 2005. -- PHOTO: REUTERS
Identical twin brothers Mr Walter (left) and David Oliver from Lincoln Park, Michigan, pose during the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 4, 2007. -- PHOTO: REUTERS
Identical twin brothers Mr Don (left) and Ed Makielski from Ypsilanti, Michigan, wear matching T-shirts signifying that Don was born before Ed, during the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 4, 2007. The pair, were born on June 12, 1927. -- PHOTO: REUTERS
Identical twins Ms Janey (left) and Judy Carriuolo from Boston, Massachusetts, pose in 1920's "flapper" costumes before taking part in a competition for themed dress during the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 4, 2007. -- PHOTO: REUTERS
Identical twin brothers Isaac (left) and Owen Wonner from Petersburg, Ohio, gather before taking part in in a look-alike contest during the final day of the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 5, 2007. -- PHOTO: REUTERS
Chinese seven-year-old twins Leilei (left) and Yaoyao pose for a photograph at a park in Beijing, on July 28, 2008. -- PHOTO: REUTERS
Twin brother and sister Nicholas (right) and Olivia Saunders from Brunswick, Ohio, are pictured with their second-place medals after taking part in a competition for twins that look the least alike, during the final day of the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 5, 2007. -- PHOTO: REUTERS
Identical twin sisters Miss Kati (left) and Kaci Anderson from Wibaux, Montana, pose before taking part in a look-alike contest during the final day of the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 5, 2007. -- PHOTO: REUTERS
Identical twin sisters Ms Denise Garzilli (left) and Ms Diane Stillwell from Baldwin, New York, check each others' lipstick for smudges before taking part in a look-alike competition at the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 5, 2007. -- PHOTO: REUTERS
Miss Leah Majeski from Acworth, GA, reaches over to take a french fry from her identical twin sister Sarah before a look-alike contest during the final day of the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 5, 2007. -- PHOTO: REUTERS
Ms Linda Seber from Sheffield, Ohio, lifts her identical twin sister Laura before taking part in a themed dress competition at the annual Twins Days Festival in Twinsburg, Ohio, on Aug 4, 2007. -- PHOTO: REUTERS
Mr Alf Fehnhann (left) and twin brother Sven hold seven-month-old Luis Carl Millgramm (2nd left) and his brother Albert Frank (right) at the third annual twin meeting in Berlin, June 18, 2005. -- PHOTO: REUTERS
Identical twin brothers Mr Walter (left) and David Oliver from Lincoln Park, Michigan, pose during the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 4, 2007. -- PHOTO: REUTERS
Identical twin brothers Mr Don (left) and Ed Makielski from Ypsilanti, Michigan, wear matching T-shirts signifying that Don was born before Ed, during the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 4, 2007. The pair, were born on June 12, 1927. -- PHOTO: REUTERS
Identical twins Ms Janey (left) and Judy Carriuolo from Boston, Massachusetts, pose in 1920's "flapper" costumes before taking part in a competition for themed dress during the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 4, 2007. -- PHOTO: REUTERS
Identical twin brothers Isaac (left) and Owen Wonner from Petersburg, Ohio, gather before taking part in in a look-alike contest during the final day of the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 5, 2007. -- PHOTO: REUTERS
Twin brother and sister Nicholas (right) and Olivia Saunders from Brunswick, Ohio, are pictured with their second-place medals after taking part in a competition for twins that look the least alike, during the final day of the 32nd annual Twins Days Festival in Twinsburg, Ohio, on Aug 5, 2007. -- PHOTO: REUTERS
Are twins really that identical? You be the judge with our gallery of duplicates.
Twins are just like everybody else. They come in all shapes and sizes but, well, just in pairs.