Kin detection cues and sibling relationships: revelations from twin and adoption studies. Commentary on

Twin Artists: Unique Sources of Inspiration and Talent/Twin Research Reviews: Ethnic and Racial Factors Affecting Type of Twin Delivery; Outcomes in Twins Conceived Naturally and With Reproductive Assistance; Delivery Time for Growth-Discordant Twins; 3D Study of Twins' Facial Resemblance/In the Media: Baseball Players With Divergent Careers; Basketball Twins in the Elite 8; Twins' Grave and Epitaph; Twins Conceived Three Times in 2 Years; Twins in the Hockey Hall of Fame; Superfetated Twins

The unique sources of artistic inspiration and talent of twin artists are examined. The professional literature is rich with twin studies of creativity, but lacking when it comes to specific artistic domains - for example, painting and sculpting. The section that follows provides reviews of current research on ethnic and racial factors affecting type of twin delivery, pregnancy outcomes when twins are conceived naturally or with reproductive assistance, the effects of intrauterine growth discordance on the timing of twin delivery, and three-dimensional (3D) assessment of twins' facial resemblance. The final section summarizes information about twins in the media. The stories include twins distinguished for both baseball playing and physical injuries, twins who reached the National College Athletic Association's Elite 8, a twin pair's grave and epitaph, a mother who conceived twins three times in 2 years, twins in the Hockey Hall of Fame, and a set of superfetated twins.