Why Are People Left- (or Right-) Handed?

Up to 90% of people are right-handed. Scientists are still trying to figure out why lefties have always been in the minority.

Why are some people left-handed and others are right-handed? - ABC Education

Types and Effects of Motor Adaptation a Left-handed Persons in Daily Life and in Contemporary Sport Training – The Sport Journal

Is it possible to be both right and left brained? That is, being both right and left dominant depending upon your mood? - Quora

The mystery of why left-handers are so much rarer

Things That Are Hard for Left-Handed People

Is handedness determined by genetics?: MedlinePlus Genetics

Suppose that 14% of the population is left handed. If four people are selected at random, what is the probability that exactly one of them is left-handed? - Quora

Mysterious Tully Monster was a weird creature but not a fish

The Psychology of Left-Handed Brain Differences

Can You Tell If a Person Is Left-Handed by Their Handwriting? - WSJ

Being left-handed in a right-handed world - A Helping Hand Professional Organizing Service

The Genetics of Being Left-Handed or Right-Handed - 23andMe Blog

Why Are People Left- (or Right-) Handed?