June 5, 2013 — Personality is not inherited from birth parents says new research on zebra finches.
External factors are likely to play a bigger part in developing the personality of an individual than the genes it inherits from its parents, suggests the study.
Researchers at the University of Exeter and the University of Hamburg investigated how personality is transferred between generations. They found that foster parents have a greater influence on the personalities of fostered offspring than the genes inherited from birth parents.
Dr Nick Royle from Biosciences at the University of Exeter said: "This is one of the first experiments to show that behaviour can be non-genetically transmitted from parents to offspring. Our study shows that in zebra finches, personality traits can be transmitted from one generation to another through behaviour not just genetics."
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