linkHmmm i wonder about the implications for human females (aren't they better at multi-tasking?) but I won't be surprised to find that there is an evolutionary advantage to have a non-lopsided brain
Lopsided Brains Let Fish Multitask
By Katherine Unger
ScienceNOW Daily News
23 June 2006
A symmetrical face is often thought a sign of beauty, but symmetry may be a disadvantage when it comes to the brain. "Left-brained" or "right-brained" fish are more adept at handling multiple activities than fish with no hemispheric preference, according to a new study. Their ability to multitask could help explain why vertebrate brains evolved to function asymmetrically.