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  2. Twins and handedness - Wikipedia

    en.wikipedia.org/wiki/Twins_and_handedness

    If the parents are both right-handed, in dizygotic and monozygotic twins there is a 21% chance of one being left-handed. If one parent is left-handed, in DZ and MZ twins there is a 57% chance of one being left-handed. If both parents are left-handed, it is almost certain one twin will be left-handed. [citation needed]

  3. 24 Things You Didn't Know About Left-Handed People - AOL

    www.aol.com/21-things-didnt-know-left-110300045.html

    Left-Handedness Has a Holiday. Aug. 13 is International Lefthanders Day. The special day for southpaws was first observed in 1976 by the founder of Lefthanders International Inc., Dean R. Campbell ...

  4. Handedness - Wikipedia

    en.wikipedia.org/wiki/Handedness

    Handedness displays a complex inheritance pattern. For example, if both parents of a child are left-handed, there is a 26% chance of that child being left-handed. [23] A large study of twins from 25,732 families by Medland et al. (2006) indicates that the heritability of handedness is roughly 24%. [24]

  5. Bias against left-handed people - Wikipedia

    en.wikipedia.org/wiki/Bias_against_left-handed...

    A left-handed shooter must either purchase a left-handed or ambidextrous firearm (which are manufactured in smaller numbers and are generally more expensive and/or harder to obtain), shoot a right-handed gun left-handed (which presents certain difficulties, such as the controls being improperly located for the left hand or hot shell cases being ...

  6. 14 things you never knew about left-handed people - AOL

    www.aol.com/article/lifestyle/2018/07/10/14...

    Only 10 percent of the population is left-handed. While there may not be many of them, being left-handed sure does come with some surprising perks!

  7. Cross-dominance - Wikipedia

    en.wikipedia.org/wiki/Cross-dominance

    Cross-dominance, also known as mixed-handedness, hand confusion, or mixed dominance, is a motor skill manifestation in which a person favors one hand for some tasks and the other hand for others, or a hand and the contralateral leg. For example, a cross-dominant person might write with the left hand and do everything else with the right one, or ...

  8. Famous People You Didn't Realize Were Left-Handed - AOL

    www.aol.com/finance/50-famous-left-handed-people...

    Left-handed people only make up about 10% of the world's population — so you might be surprised to learn how many of them have been world leaders, artists, well-known athletes, award-winning actors.

  9. Neuroanatomy of handedness - Wikipedia

    en.wikipedia.org/wiki/Neuroanatomy_of_handedness

    Left-handers who were forced during childhood to use their right hand showed a larger surface area of the central sulcus in their left hemisphere, which is associated with right-handedness. Also, structures in the basal ganglia such as the putamen also mirrored developmental right-hand dominant individuals in the forced group.