In another thread (http://boards.straightdope.com/sdmb/showthread.php?threadid=112700), KarlGauss mentioned that identical twins reared apart have similar body weights- which would mean that genetics, and not environment- appears to determine weight. My question is, what other similarities do identical twins reared apart have? Has any other aspects of these twins personalities been studied?? Do they like the same foods??? The same music???