By Jacqui Hayes
SYDNEY: Do you look like your father when you're angry? Probably more than you'd imagined. Facial expressions may be inherited, Israeli researchers say.
According to scientists, every person has a set of facial expressions that is unique to them, a signature of their identity that remains stable over time. Stable patterns of facial expressions arise before a baby is six months old, but until now, scientists were unsure whether these patterns were learned or innate.
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