Right-handed & left-handed (spring 2025) 7
"Handedness" is behavioral lateralization - the tendency to use or respond with one side of the body while engaged in various activities. The most obvious manifestation of this in humans is writing with the right hand or the left hand.
Just for interest's sake, here are some numbers based on observations I've made over the years in Newark, Ohio (this is a spring 2025 update): out of 993 people, 888 were right-handed and 105 were left-handed. "Lefties" are 10.57% of this population sample.
Surprisingly, handedness is also observed in the fossil record, from Pleistocene proboscideans to Cambrian trilobites. Published census information on trilobites with healed predatory bite marks shows that a statistically significant percentage of specimens were bitten on their right sides. Studies of fossil hominids show that about 90% were righties and 10% were lefties.
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See:
whyevolutionistrue.wordpress.com/2018/10/25/how-do-we-kno...
Right-handed & left-handed (spring 2025) 7
"Handedness" is behavioral lateralization - the tendency to use or respond with one side of the body while engaged in various activities. The most obvious manifestation of this in humans is writing with the right hand or the left hand.
Just for interest's sake, here are some numbers based on observations I've made over the years in Newark, Ohio (this is a spring 2025 update): out of 993 people, 888 were right-handed and 105 were left-handed. "Lefties" are 10.57% of this population sample.
Surprisingly, handedness is also observed in the fossil record, from Pleistocene proboscideans to Cambrian trilobites. Published census information on trilobites with healed predatory bite marks shows that a statistically significant percentage of specimens were bitten on their right sides. Studies of fossil hominids show that about 90% were righties and 10% were lefties.
-----------------------------
See:
whyevolutionistrue.wordpress.com/2018/10/25/how-do-we-kno...