Date: November 15, 2017
Source: University of Konstanz
To humans, being right-handed or
left-handed plays an important role. The majority favours the right side of
their bodies, while only about three per cent of people innately use both hands
equally well. Preferring one side of the body over another is not unique to
humans: the phenomenon occurs in the animal kingdom as well, for instance in
great apes or birds, although their "handedness" is typically not as
obvious as it is in humans. "Handedness" is particularly pronounced
in cichlid fish of the species Perissodus microlepis, which is endemic to Lake
Tanganyika in Africa.
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