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In his book Right-Hand, Left-Hand, Chris McManus of University College London argues that the proportion of left-handers is increasing, and that an above-average quota of high achievers have been left-handed. He says that left-handers' brains are structured in a way that increases their range of abilities, and that the genes that determine left ...
In humans, chirality (also referred to as handedness or laterality) is an attribute of humans defined by their unequal distribution of fine motor skill between the left and right hands. An individual who is more dexterous with the right hand is called right-handed, and one who is more skilled with the left is said to be left-handed.
However, wild kangaroos and other macropod marsupials have a left-hand preference for everyday tasks. Left-handedness is particularly apparent in the red kangaroo (Macropus rufus) and the eastern gray kangaroo (Macropus giganteus). The red-necked wallaby (Macropus rufogriseus) preferentially uses the left
An older study found that left-handed people were better at "divergent thinking", and a more recent research cites lefties have better working memories and mental flexibility. 5. Don't get too ...
In left-handers, the right hemisphere is in control of the dominant hand. The question is: what causes the asymmetry of the brain to develop differently in left-handers?"
Over 90% [1] of gastropod species have shells in which the direction of the coil is dextral (right-handed). A small minority of species and genera have shells in which the coils are almost always sinistral (left-handed). Very few species show an even mixture of dextral and sinistral individuals (for example, Amphidromus perversus). [2]
Left-Handed People Predominate in Western Countries. Whereas countries in Asia and the Middle East have around a 6% rate of left-handedness, Western nations come in at 13%.
Ambidexterity is the ability to use both the right and left hand equally well. [1] [2] When referring to objects, the term indicates that the object is equally suitable for right-handed and left-handed people.