title: SuperQuads: a day in the life; research reviews: color-number association, finger-length ratios, twinning diets, athletic pairs.
abstract: The nature and frequency of quadruplet births are reviewed, followed by a close-up look at the 6-year-old monozygotic Mathias quadruplets. This essay is followed by reviews of new twin research on color-number association, male-female twins' finger-length ratios, and links between twinning and dietary practices. The article finishes by focusing on unusual twin athletes in football, basketball and golf, and on twin co-authors of a new book on the 1972 silver medal victory by the United States hockey team.
authors.affiliation: Department of Psychology, California State University, United States of America, nsegal@fullerton.edu
authors.forename: Nancy L
authors.initials: NL
authors.lastname: Segal
mesh_terms: D002648:Child; D005247:Feeding Behavior / Q000502:physiology*; D005260:Female; D005385:Fingers / Q000502:physiology; D005500:Follow-Up Studies; D049673:History, 20th Century; D006801:Humans; D008297:Male; D009929:Organ Size / Q000235:genetics; D010858:Pigmentation / Q000235:genetics; D011783:Quadruplets / Q000235:genetics; D013177:Sports; D018433:Twin Studies as Topic / Q000266:history; D014427:Twins / Q000235:genetics