from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Plural form of nontwin.
Sorry, no etymologies found.
The fact that twins are twice as likely to be lefty as nontwins offers some support to Smits theory, but his ideas have never been scientifically tested.
He makes use of a data set of people ages 25 to 75, including fraternal twins, identical twins, and nontwin siblings (looking at twins and nontwins helps isolate heritable characteristics), and finds that the environment does, in fact, matter - but in unpredictable ways.
Yes, in the case of nontwins a major caveat, because pro-lifers’ supposed “science” is unable to tell us whether a zygote which then divides into twins was one person or two and whether it was Laura, Linda, both, or some third person who was extinguished when the cell divided, DNA stays constant and unique throughout human development.