Twins Reared Apart
In 1979, Thomas Bouchard began to study twins who were separated at birth and reared in different families. He found that an identical twin reared away from his or her co-twin seems to have about an equal chance of being similar to the co-twin in terms of personality, interests, and attitudes as one who has been reared with his or her co-twin. This leads to the conclusion that the similarities between twins are due to genes, not environment, since the differences between twins reared apart must be due totally to the environment.
Read more about this topic: Minnesota Twin Family Study
Famous quotes containing the words twins and/or reared:
“Sisters we are, yea, twins we be,
Yet deadly feud ‘twixt thee and me;
For from one father are we not,
Thou by old Adam wast begot,
But my arise is from above,”
—Anne Bradstreet (c. 1612–1672)
“Could it be that those who were reared in the postwar years really were spoiled, as we used to hear? Did a child-centered generation, raised in depression and war, produce a self-centered generation that resents children and parenthood?”
—C. John Sommerville (20th century)